Free calculators免费计算器

Trading & risk calculators交易与风险计算器

Calculators that answer one question each, show the math, and never ask you to sign up — position sizing, options, dividends, risk of ruin and more, worked out in front of you.每款计算器只回答一个问题,把算式摆在你面前,且无需注册——仓位管理、期权、股息、破产风险等等,当场为你算清。

01 Calculators计算器 26 tools

Position Size Calculator

Shares to buy from account size, risk % and stop.

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Risk-Reward Calculator

R:R ratio, breakeven win rate and expectancy from entry, stop and target.

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Trade Profit & Loss Calculator

P/L, return % and annualized rate for long or short trades.

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Compound Interest Calculator

Future value of principal plus regular contributions over time.

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CAGR Calculator

Find CAGR from begin/end values, or project a future value at a set rate.

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Drawdown Recovery Calculator

Required gain and recovery time from any drawdown percentage.

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Retirement Calculator

Nest egg from savings, monthly adds and expected return.

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ROI Calculator

ROI percent, dollar profit, and annualized return from cost and final value.

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Dividend Calculator

Yearly and monthly dividend income, plus a reinvestment growth projection.

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Dollar-Cost Averaging (DCA) Calculator

Project a DCA plan's end value from a fixed contribution, cadence and return.

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Rule of 72 Calculator

Years to double from a return, or the return to double in N years — plus exact math.

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Percentage Gain/Loss Calculator

Percent change between two prices, plus dollar P/L and break-even recovery.

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Savings Goal Calculator

Monthly amount to hit a savings goal by a date, or the time a fixed deposit takes.

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Inflation & Purchasing Power Calculator

Future cost and lost purchasing power from an amount, inflation rate and years.

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Net Worth Calculator

Net worth, assets, liabilities and debt-to-asset ratio from what you own and owe.

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Options Profit Calculator

Single-leg call or put P/L, break-even and max loss at expiration.

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Stock Average (Average Down) Calculator

Blend up to 5 buys into one average cost and break-even.

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Margin & Buying Power Calculator

Turn account equity into buying power, leverage, and a margin-call price.

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Forex Pip Value Calculator

Pip value from position size, pip size and quote-to-account rate.

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Short Selling Profit Calculator

Short-sale profit or loss, net of the stock borrow fee.

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Covered Call Return Calculator

Income if flat vs. return if called, break-even, and annualized — per 100 shares.

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Stop-Loss & Take-Profit Calculator

Exact stop & target prices from entry, % distances and side — plus reward:risk.

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Kelly Criterion Calculator

Optimal capital fraction to stake from win rate and win/loss ratio.

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Sharpe Ratio Calculator

Excess return per unit of risk, from return, risk-free rate and volatility.

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Portfolio Rebalancing Calculator

Buys and sells to pull your holdings back to their target weights.

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Risk of Ruin Calculator

Odds a fixed-fractional plan blows past a ruin threshold, from win rate and risk.

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02 Spreadsheets电子表格
Free download · Excel免费下载 · Excel
The Mastermind trading journal操盘大脑交易日志

A pre-built spreadsheet that logs every trade and computes your win rate, average R, expectancy and drawdown for you. The habit behind every consistent desk.一份预制表格,记录每笔交易,自动为你计算胜率、平均 R、期望值与回撤——每个稳定交易台背后的习惯。

See the journal查看日志