更聪明地投资。
投资
为散户投资者和交易者打造的源自 Reddit 的计算器和分析器——仓位大小、R 倍数、凯利公式、复合年增长率、波动率、夏普比率、股息率、股息再投资、FIRE 数字、安全提取率、RMD、备兑看涨收益、保护性看跌成本、垂直价差盈亏平衡、定投、Gas 费和无常损失计算。
30 个工具可用
仓位与风险
仓位大小、R 倍数、凯利公式、止损/止盈和最大回撤计算——r/investing 和 r/Daytrading 讨论背后的数学。
收益与表现
复合年增长率、总回报、波动率(标准差)、夏普比率和相对基准的贝塔——r/personalfinance 和 r/investing 上反复出现的收益问题。
股息与收入
股息率、股息再投资预测、成本收益率、派息率和未来收入计算,为 r/dividends 和 FIRE 社区打造。
退休与目标
FIRE 数字、4% 安全提取率、退休缺口/盈余和最低提取额(RMD)计算,为 r/financialindependence 和 r/retirement 打造。
期权与衍生品
备兑看涨收益、保护性看跌成本、垂直价差盈亏平衡和备兑看涨最大利润计算,为 r/options 社区打造。
加密货币 / Web3
通用定投、Gas 费占比、质押年化收益换算和无常损失计算——超越计算器分类中仅限 BTC 的定投工具。
Position Size Calculator
Compute shares to buy from account size, risk %, and stop distance.
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R-Multiple Calculator
Score a trade by its reward-to-risk multiple.
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Stop-Loss / Take-Profit Calculator
Plan a stop and target by R-multiple and risk percent.
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Kelly Criterion Calculator
Find the optimal bet size from your edge and odds.
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Max Drawdown Calculator
See how much an account shrinks from peak to trough in percent.
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CAGR Calculator
Compute compound annual growth rate between two values over N years.
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Total Return Calculator
Compute total return including dividends, fees, and price change.
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Inflation-Adjusted Return Calculator
See your real return after subtracting inflation.
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Volatility Calculator
Compute annualized volatility from a list of returns.
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Sharpe Ratio Calculator
Score a portfolio's risk-adjusted return.
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Dividend Yield Calculator
Compute trailing and forward dividend yield from price and payout.
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DRIP Projection Calculator
Project share count and dividend income with reinvestment.
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Yield-on-Cost Calculator
See the dividend yield on your original purchase price.
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Monthly Dividend Income Calculator
See your projected monthly cash flow from a dividend portfolio.
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FIRE Number Calculator
See how much you need to retire based on annual expenses.
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Safe Withdrawal Rate Calculator
Project retirement income at the 4% rule and run Monte Carlo variance.
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Retirement Shortfall Calculator
See if your savings will run out before you do.
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Required Minimum Distribution Calculator
Compute your RMD from the IRS Uniform Lifetime Table.
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Covered Call Return Calculator
See the max profit, breakeven, and annualized return of a covered call.
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Protective Put Cost Calculator
Compute the cost of hedging a long position with a put.
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Vertical Spread Breakeven Calculator
Find breakeven and max loss / max profit for a call or put spread.
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DCA Future Value Calculator
Project the future value of any recurring investment.
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Gas Fee as % of Trade Calculator
See how much of your trade the gas actually eats.
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Impermanent Loss Calculator
See the impermanent loss for an LP position at any price change.
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Crypto Tax-Loss Harvesting Calculator
See how much tax you can defer by harvesting a losing crypto position.
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Cap Rate Calculator
Capitalization rate from NOI and purchase price (or reverse).
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Cash-on-Cash Return Calculator
CoC return from annual cash flow and total cash invested.
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Refinance Break-Even Calculator
Months until refinance savings recoup closing costs.
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House Flip Profit Calculator
Net profit using the 70% rule, ARV, rehab, and selling costs.
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Rental Property ROI
Compute cap rate, cash flow, and cash-on-cash return on a rental.
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