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。
Position Size Calculator
Shares to buy from account size, risk % and stop.
Open calculator打开计算器 →Risk-Reward Calculator
R:R ratio, breakeven win rate and expectancy from entry, stop and target.
Open calculator打开计算器 →Trade Profit & Loss Calculator
P/L, return % and annualized rate for long or short trades.
Open calculator打开计算器 →Compound Interest Calculator
Future value of principal plus regular contributions over time.
Open calculator打开计算器 →CAGR Calculator
Find CAGR from begin/end values, or project a future value at a set rate.
Open calculator打开计算器 →Drawdown Recovery Calculator
Required gain and recovery time from any drawdown percentage.
Open calculator打开计算器 →Retirement Calculator
Nest egg from savings, monthly adds and expected return.
Open calculator打开计算器 →ROI Calculator
ROI percent, dollar profit, and annualized return from cost and final value.
Open calculator打开计算器 →Dividend Calculator
Yearly and monthly dividend income, plus a reinvestment growth projection.
Open calculator打开计算器 →Dollar-Cost Averaging (DCA) Calculator
Project a DCA plan's end value from a fixed contribution, cadence and return.
Open calculator打开计算器 →Rule of 72 Calculator
Years to double from a return, or the return to double in N years — plus exact math.
Open calculator打开计算器 →Percentage Gain/Loss Calculator
Percent change between two prices, plus dollar P/L and break-even recovery.
Open calculator打开计算器 →Savings Goal Calculator
Monthly amount to hit a savings goal by a date, or the time a fixed deposit takes.
Open calculator打开计算器 →Inflation & Purchasing Power Calculator
Future cost and lost purchasing power from an amount, inflation rate and years.
Open calculator打开计算器 →Net Worth Calculator
Net worth, assets, liabilities and debt-to-asset ratio from what you own and owe.
Open calculator打开计算器 →Options Profit Calculator
Single-leg call or put P/L, break-even and max loss at expiration.
Open calculator打开计算器 →Stock Average (Average Down) Calculator
Blend up to 5 buys into one average cost and break-even.
Open calculator打开计算器 →Margin & Buying Power Calculator
Turn account equity into buying power, leverage, and a margin-call price.
Open calculator打开计算器 →Forex Pip Value Calculator
Pip value from position size, pip size and quote-to-account rate.
Open calculator打开计算器 →Short Selling Profit Calculator
Short-sale profit or loss, net of the stock borrow fee.
Open calculator打开计算器 →Covered Call Return Calculator
Income if flat vs. return if called, break-even, and annualized — per 100 shares.
Open calculator打开计算器 →Stop-Loss & Take-Profit Calculator
Exact stop & target prices from entry, % distances and side — plus reward:risk.
Open calculator打开计算器 →Kelly Criterion Calculator
Optimal capital fraction to stake from win rate and win/loss ratio.
Open calculator打开计算器 →Sharpe Ratio Calculator
Excess return per unit of risk, from return, risk-free rate and volatility.
Open calculator打开计算器 →Portfolio Rebalancing Calculator
Buys and sells to pull your holdings back to their target weights.
Open calculator打开计算器 →Risk of Ruin Calculator
Odds a fixed-fractional plan blows past a ruin threshold, from win rate and risk.
Open calculator打开计算器 →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。