숫자를 계산하다.
계산기
돈, 건강, 시간에 필요한 계산을 누구에게도 데이터를 넘기지 않고 해결하세요.
199개 도구 이용 가능
Rent Affordability Calculator
Find out how much rent you can afford based on your income.
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Shopify Shipping Simulator
Estimate shipping cost and margin on a Shopify order.
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Appliance Energy Cost Calculator
Calculate how much an appliance costs you per month and per year.
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Daily Distraction Cost Calculator
See how much time and money distractions cost you every year.
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Tip Calculator
Split the bill fairly and pick the right tip percentage.
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Compound Interest Calculator
Visualize how your investments grow over time with compound interest.
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Mortgage Payment Calculator
Estimate your monthly mortgage payment including taxes and insurance.
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Savings Goal Calculator
Find out how much to save each month to hit any goal.
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Discount / Sale Price Calculator
Calculate the final price, savings, and effective percentage off.
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Meeting Cost Calculator
See how much every minute of a meeting actually costs.
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Age Calculator
Calculate exact age in years, months, days, hours, and minutes.
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Days Between Dates
Calculate the exact gap between two dates in days, weeks, and months.
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Reading Time Estimator
Estimate how long it takes to read any text aloud or silently.
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Aspect Ratio Calculator
Calculate scaled dimensions for any aspect ratio.
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Etsy Fee Calculator
See exactly what Etsy takes from each sale.
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Profit Margin Calculator
Calculate gross and net profit margins on any product.
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Trip ETA Calculator
Calculate arrival time for a trip by distance and speed.
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Debt Payoff Calculator (Snowball vs Avalanche)
Compare the debt snowball and avalanche strategies and see which saves you more.
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Car Payment Calculator
Estimate your monthly car payment, total interest, and total cost of an auto loan.
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Mortgage Refinance Break-Even Calculator
Find out how long it takes to break even on a refinance — and whether it’s worth it.
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Startup Burn Rate & Runway Calculator
See how fast you’re burning cash and how many months of runway you have left.
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Instagram / TikTok Engagement Rate
Calculate your true engagement rate and see how you compare to your niche.
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50/30/20 Budget Calculator
Build a balanced monthly budget in one screen using the 50/30/20 rule.
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Loan Amortization Schedule
See exactly how much of each payment goes to interest vs principal over the life of any loan.
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Retirement 401(k) / IRA Calculator
Project your retirement balance and see if you’re on track.
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Crypto Dollar-Cost Averaging Calculator
See the future value of a recurring BTC/ETH buy and its average entry price.
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SIP / Mutual Fund Return Calculator
Project the future value of a monthly SIP / mutual fund investment.
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Breakeven Analysis (Small Business)
Find the exact sales volume you need to cover all your costs and turn a profit.
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Real Estate ROI & Cap Rate
Compute cap rate, cash-on-cash return, and total ROI on a rental property.
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Freelancer Day Rate Calculator
Find the hourly or day rate you need to hit your target salary as a freelancer.
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Inflation Calculator
See how much purchasing power $X in year Y is worth in today’s dollars.
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Time Card / Hours Calculator
Add clock-in / clock-out times and get total hours, overtime, and pay.
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Tax Withholding Estimator (2026)
Estimate your U.S. federal tax, FICA, and net paycheck from a W-2 salary.
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Group Cost Splitter
Split a trip, dinner, or shared cost evenly — or with custom shares, deposits, and tips.
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Mortgage Discount Points Calculator
Decide whether to buy down your mortgage rate with discount points.
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Blood Alcohol Estimator (Widmark)
Estimate your BAC over time using the Widmark formula — strictly educational.
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ISO Week Number Calculator
Get the ISO 8601 week number, weekday, and day-of-year for any date.
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Roth vs Traditional 401(k) Comparison
See whether a Roth or Traditional 401(k) leaves more money in your pocket at retirement.
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Sun & Golden Hour Calculator
Get sunrise, sunset, golden hour and blue hour times for any date and location.
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ND Filter Long-Exposure Calculator
Find the right ND filter and exposure time for any daylight long exposure.
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Depth of Field Calculator
Compute near, far, and total depth of field for any lens and aperture.
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Exposure Value (EV) Calculator
Compute and convert EV at any aperture, shutter, and ISO combination.
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자영업자 세금 추정기 (Schedule SE)
1099 소득에 대한 SS + Medicare 를 추정합니다.
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Quarterly Estimated Tax Calculator
Compute your quarterly 1040-ES payment to avoid an IRS underpayment penalty.
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Speedometer Error & Tire Size Calculator
See how your real speed and odometer change when you change tire size.
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EV vs Gas Car Savings Calculator
Compare total 5-year cost of an EV vs the gas equivalent — fuel, maintenance, depreciation.
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Lease vs Buy Car Calculator
See whether leasing or buying is cheaper over the period you actually keep the car.
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Meat Cook Time by Weight
Estimate cook time and target internal temperature for any cut and method.
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ROAS & Marketing ROI Calculator
Compute Return on Ad Spend, CAC, break-even, and target CPA from your numbers.
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Stripe / PayPal / Square Fee Calculator
See the real fee on every payment processor — Stripe, PayPal, Square, and more.
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Wedding Alcohol / Drink Calculator
Estimate the right number of bottles, beer cases, and mixers for a party.
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Net Worth Snapshot Calculator
Tally assets and liabilities to compute a private net-worth snapshot.
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Emergency Fund Calculator
See how big your emergency fund should be and how long to build it.
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Seed & Plant Spacing Calculator
See how many plants fit a bed and how far apart to space them.
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Baker's Percentage Calculator
Convert any bread recipe to baker's percentages or scale to a target dough weight.
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Sourdough Hydration Calculator
Find the dough hydration percentage from flour and water weights.
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Meat Internal Temperature Guide
Pull temperatures and carryover cook times for beef, pork, poultry, and fish.
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Pan Size Converter
Adjust batter volume and bake time when swapping pan sizes.
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Oven Temperature Converter
Convert between °F, °C, Gas Mark, and convection with fan offset.
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ABV Calculator (Homebrew)
Compute alcohol by volume from gravity readings (OG / FG).
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Mash Water & Strike Temp Calculator
Strike temperature and total water volume from grain bill + mash thickness.
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Hop Utilization / IBU Calculator
Estimate IBU from hop weight, AA%, boil time, and wort gravity (Tinseth).
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Yeast Starter Calculator
Starter size and stir-plate recommendation from target OG and volume.
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Priming Sugar Calculator
How much corn sugar / DME to carbonate your bottled beer.
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Brewing Water Chemistry Calculator
Adjust mash water with salts to hit a target water profile.
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Tire Size Comparison
Compare two tire specs by diameter, width, and speedometer error.
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Fuel Cost per Mile
Cost per mile or kilometer from MPG and fuel price.
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Engine Oil Capacity Calculator
How many quarts / liters of oil your engine needs.
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Windshield Washer Fluid Dilution
Methanol ratio for any freeze point at any volume.
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Ceramic Coating Coverage Calculator
Milliliters per panel for a full-car ceramic coating.
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Yarn Yardage Estimator
Estimate total yardage for a blanket, scarf, sweater, or amigurumi.
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Gauge Swatch Converter
Rescale a pattern when your swatch does not match.
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Depth of Field Calculator
Near / far focus limits and total DOF for any lens + aperture combo.
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Exposure Triangle Calculator
Equivalent exposures when swapping aperture, shutter, or ISO.
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Golden Hour / Blue Hour Calculator
Sunrise, sunset, golden hour, and blue hour times for any date and location.
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Print Size & DPI Calculator
Maximum print size from sensor megapixels at a target DPI.
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Screenplay Runtime Estimator
Estimate feature runtime from page count and dialogue density.
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Book Royalty Calculator
Earnings from advance, royalty rate, and projected sales.
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Wedding Budget Split
Allocate your total budget across venue, catering, photography, and more.
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Wedding Cake Serving Calculator
Servings per tier and total servings needed for your guest count.
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Seating Chart Capacity Calculator
How many guests fit at round, rectangular, or farmhouse tables.
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Backpack Weight Calculator
Total pack weight and percent of body weight carried.
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Hike Water Needs Calculator
Liters of water for any distance, elevation, temperature, and pack weight.
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Elevation Pace Adjustment Calculator
Adjust your flat-pace estimate for elevation gain and loss.
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Baby Age Calculator
Months, weeks, and days old from birth date, with adjusted age for preemies.
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Baby Formula Amount Calculator
Daily ounces from age/weight plus per-feed bottle size.
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Child Growth Percentile Calculator
Height, weight, and BMI percentile from CDC or WHO charts.
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Salary-to-Hourly Calculator
Convert annual salary to true hourly rate after PTO, commute, and benefits.
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Debt Avalanche vs Snowball Calculator
Side-by-side payoff month and total interest for both methods.
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US Tax Bracket Calculator (2024)
Marginal and effective tax rate plus take-home pay.
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Savings Rate Calculator
What percent of your income are you actually saving.
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Days Together / Anniversary Counter
Exact years, months, days since your anniversary — and milestone badges.
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Language Hours to Fluency
FSI hours from zero to A2 / B1 / B2 / C1 / C2 for any language.
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Anki Retention Calculator
Project your long-term recall rate and review load.
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Resume Bullet Word Counter & Strength Score
Count words, flag weak verbs, and suggest stronger action-verb rewrites.
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Salary Negotiation Anchor Calculator
Set your walk-away, target, and anchor numbers before the offer call.
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Tax Withholding Estimator
See how much federal tax to withhold per paycheck to get a refund (or owe $0).
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Roth IRA MAGI Phase-out
Compute your MAGI and see how much Roth IRA contribution you're allowed.
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Cost-of-Living Compare
Estimate the equivalent salary and rent burden in any US metro.
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CD vs HYSA
Is a CD worth locking up your cash for the small APY bump?
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Family Sale Gift Tax Estimator
Estimate the gift-tax exposure on a below-market sale from family.
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529-to-Roth Rollover Optimizer
See how much of your 529 can move into a Roth — and the tax traps.
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Lease Buyout Calculator
Decide whether to buy out your lease, surrender it, or sell privately.
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Credit Score Converter
Translate between VantageScore, FICO 8, FICO Auto, and FICO Mortgage.
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401(k) / 403(b) Fee Drag
See how much a maintenance fee is costing your retirement over time.
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Raise vs Inflation
Does your annual raise actually beat inflation?
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CD Ladder Yield
Build a CD ladder and see the realised yield across rungs.
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Real Return After Tax & Inflation
See what your '7% return' actually becomes after tax, fees, and inflation.
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크ripto 영구 펀딩 수수료
레버리지 크ripto 포지션의 누적 펀딩 수수료를 추정합니다.
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스테이킹 보상 세금 계산기
연간 스테이킹/렌딩 보상에 대한 세금을 추정합니다.
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Bitcoin 4% 법칙
지출을 바닥 성장으로 충당하는 데 필요한 BTC 를 추정합니다.
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Bitcoin 네트워크 수수료 추정기
Bitcoin 거래의 sat/vB 및 USD 비용을 확인합니다.
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크ripto 1099-DA 취득가 검증
새 1099-DA 에 대해 크ripto 취득가를 대조합니다.
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크ripto 취득가 복구
Form 8949 균형을 맞추기 위해 복구할 취득가를 추정합니다.
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보증금 반환 계산기
집주인이 공제할 수 있는 금액과 환급받을 금액을 추정합니다.
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리스 vs 구매 (잔존가치 포함)
자동차를 리스할지 일시불로 살지 결정합니다.
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자동차 대출 숨은 수수료 검출기
고지된 월 상환액과 공시 APR 의 정합성을 검증합니다.
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Bitcoin 마이닝 풀 비교
해시레이트 대비 풀 수수료와 수익성을 비교합니다.
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SaaS 좀비 시트 검출기
미사용 SaaS 시트와 월 비용을 식별합니다.
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클라우드 스토리지 TCO
S3 / Wasabi / B2 스토리지의 월·연 비용을 추정합니다.
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자녀 양육비 가이드라인 추정기
월별 자녀 양육비를 추정합니다.
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장기 요양 보험 vs 자비 부담
장기 요양 보험 가입 여부를 결정합니다.
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라스트 마일 배송 비용
소형 이커머스 스토어의 패키지당 배송비를 추정합니다.
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소득 기반 주택 구매력
월 총소득으로 구매 가능한 주택 가격을 추정합니다.
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ESPP 룩백 가치
룩백 조항이 있는 ESPP 의 가치와 세금을 추정합니다.
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Wi-Fi 업그레이드 ROI
Wi-Fi 6E/7 업그레이드 가치 평가.
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LLM API 월 비용
월 트래픽에 대한 LLM 추론 비용을 추정합니다.
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스톡 그랜트 희석 및 가치
스톡 그랜트의 베스팅 가치와 스프레드를 계산합니다.
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역대 최저가 대비 딜 점수
현재 가격을 역대 최저가와 비교 평가합니다.
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독서 시간 추정기
책이나 PDF 의 읽는 시간을 추정합니다.
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소형 창고 건축 비용
소형 창고 / 3PL 의 설비 capex 와 월 opex 를 추정합니다.
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로컬 AI 추론 비용
GPU 에서 로컬 LLM 실행이 API 보다 저렴한지 평가합니다.
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GPU 클라우드 인스턴스 비용
온디맨드, 스팟, 예약 GPU 인스턴스 비용을 비교합니다.
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Home Sale Net Proceeds Calculator
See what you actually keep after closing costs, agent fees, payoff, and capital gains.
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Social Security Break-Even Calculator
Compare claiming Social Security at 62, FRA, and 70 with a break-even age.
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Pension Lump Sum vs Monthly Calculator
Compare a pension lump-sum offer against the monthly annuity stream.
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HSA vs FSA Calculator
Compare an HSA against a health FSA using tax savings, rollover, and contribution limits.
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Dependent Care FSA Calculator
See the tax savings and contribution limit for a dependent care FSA.
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Mega Backdoor Roth Calculator
Estimate how much after-tax 401(k) money you can convert to Roth each year.
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401(k) Match Calculator
Calculate the exact 401(k) contribution needed to collect the full employer match.
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Car Insurance Payment Calculator
Compare monthly and annual car insurance payment plans side by side.
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Solar Lease vs Buy Calculator
Compare solar lease, PPA, loan, and cash ownership over the system life.
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Pet Insurance Break-Even Calculator
Estimate whether pet insurance pays off from premiums, deductible, and expected vet bills.
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Dog Daycare Cost Calculator
Estimate daily, weekly, or monthly dog daycare and boarding costs.
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Dog Ownership Cost Calculator
Budget first-year and lifetime dog costs from adoption to food, vet, and care.
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Health Plan Out-of-Pocket Calculator
Compare health plans by premium, deductible, copay, and out-of-pocket maximum.
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Streaming Bundle Savings Calculator
See whether a cable or streaming bundle beats your current subscription stack.
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Grocery Unit Price Calculator
Compare grocery sizes and brands by price per unit.
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Coffee Cost per Cup Calculator
Compare coffee shop, pod, and home-brewed coffee cost per cup.
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Pizza Dough Calculator
Scale pizza dough by ball weight, hydration, and number of pizzas.
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Term Life Insurance Cost Calculator
Estimate term life premiums from coverage, term, age, and health class.
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Home Insurance Coverage Calculator
Estimate dwelling replacement cost and coverage limits from home details.
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Umbrella Insurance Cost Calculator
Estimate umbrella insurance premiums from coverage and household risk.
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Mortgage Payoff vs Invest Calculator
Compare paying off a mortgage early against investing the same money.
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Student Loan Refinance Break-Even Calculator
Compare refinancing student loans against current payments and fees.
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Car Loan Early Payoff Calculator
See how much paying off a car loan early saves in interest.
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Biweekly Mortgage Savings Calculator
Compare biweekly mortgage payments against monthly payments.
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529 vs Taxable Account Calculator
Compare a 529 plan against a taxable brokerage for education savings.
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Medicare IRMAA Surcharge Calculator
Estimate Medicare Part B and Part D IRMAA surcharges from income.
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Social Security Tax Calculator
Estimate how much of your Social Security benefit is taxable.
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Capital Gains Tax Calculator
Estimate long-term and short-term capital gains tax from income and gains.
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Property Tax Estimator
Estimate annual property taxes from assessed value, exemptions, and mill rate.
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Wedding Cost Estimator
Estimate a wedding budget from guests, venue, catering, and region.
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Funeral Cost Estimator
Estimate funeral, burial, or cremation costs from service and location.
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Grocery Delivery vs Store Calculator
Compare grocery delivery, pickup, and in-store shopping costs.
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Amazon FBA Fee Calculator
Estimate Amazon FBA referral, fulfillment, and storage fees.
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eBay Fee Calculator
Estimate eBay final value fees, insertion fees, and seller costs.
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Patreon Fee Calculator
Estimate Patreon platform fees and creator payouts from pledges.
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Twitch Payout Calculator
Estimate Twitch earnings from subs, bits, ads, and donations.
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Meal Kit vs Grocery Cost Calculator
Compare meal kit deliveries against buying the same groceries.
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PMI Removal Break-Even Calculator
Estimate when private mortgage insurance can be removed.
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Mortgage Points Break-Even Calculator
Compare paying discount points against keeping cash at closing.
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HELOC vs Home Equity Loan Calculator
Compare a variable HELOC against a fixed home-equity loan.
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15 vs 30 Year Mortgage Calculator
Compare payment, interest, equity, and invest-the-difference outcomes.
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401(k) Loan Cost Calculator
Compare borrowing from a 401(k) against a conventional loan.
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IRA Early Withdrawal Penalty Calculator
Estimate taxable income, penalty, exceptions, and net cash from an IRA withdrawal.
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Disability Insurance Cost Calculator
Estimate individual disability premium range and coverage gap.
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COBRA Cost Calculator
Estimate COBRA premium, subsidy, and marketplace comparison.
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Vision Insurance Break-Even Calculator
Compare vision plan premiums with expected exams, lenses, frames, and contacts.
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Renters Insurance Coverage Cost Calculator
Estimate coverage need and illustrative renters insurance premium.
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Flood Insurance Cost & Coverage Calculator
Estimate flood policy factors, deductible, and coverage gaps.
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Cell Phone Insurance Break-Even Calculator
Compare phone protection premiums, deductibles, and self-insuring.
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Dishwasher Running Cost Calculator
Estimate dishwasher energy and water cost per load and per year.
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Refrigerator Running Cost Calculator
Estimate refrigerator energy cost from kWh and electricity rate.
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Christmas Lights Electric Cost Calculator
Estimate Christmas lights energy use from type, count, and hours.
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Topsoil Calculator
Calculate topsoil volume and cost from area and depth.
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Wood Stain Coverage Calculator
Calculate wood stain coverage from area, coats, and surface.
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Mesh WiFi Worth Calculator
Compare mesh WiFi against a router upgrade or ethernet.
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E-Bike Range Calculator
Estimate e-bike range from battery, assist, rider, and terrain.
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Airbnb Cleaning Fee Calculator
Estimate a cleaning fee from listing size and turnover.
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Mortgage Rate Lock Cost Calculator
Estimate mortgage rate lock fees and break-even.
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Rent Increase Calculator
Calculate rent increase options against market and vacancy risk.
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Small Business Tax Calculator
Estimate quarterly and annual tax for a small business.
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Business Valuation Calculator
Estimate what a small business is worth by multiple.
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Service Pricing Calculator
Set a day rate or project price from income and overhead.
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Business Runway Calculator
Estimate how many months of business runway you have left.
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Self-Employed Deduction Calculator
Total mileage, home office, and self-employment deductions.
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Home Inspection Cost Calculator
Estimate home inspection cost from size and inspection type.
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Video Production Cost Calculator
Estimate video production from crew, gear, and post.
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