THE NUMBERS BEHIND THE TRADE
Trading Calculators
Size a position, understand your risk, and explore the numbers behind a strategy. 61 free tools with instant results and clear assumptions.
61 calculators
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Trading & Risk
Position Size Calculator
Estimate whole-share position size from your account balance, risk budget, entry price, and stop price.
Open calculator →Trading & Risk
Risk/Reward & Break-Even Win Rate Calculator
Compare a planned target with a planned stop and find the win rate needed to break even under those assumptions.
Open calculator →Trading & Risk
Drawdown Recovery Calculator
See how much an account must gain to recover after a percentage loss. The recovery percentage is larger than the loss percentage.
Open calculator →Trading & Risk
Trading Costs Calculator
Estimate the combined drag from fixed commissions, percentage fees, and slippage over a set of round-trip trades.
Open calculator →Growth & Investing
Compound Growth Calculator
Explore a hypothetical balance with monthly contributions and a chosen annual return. Compare your contributions with modeled growth.
Open calculator →Trading & Risk
Trade Expectancy Calculator
Combine your win rate, average winning trade, average losing trade, and costs to estimate the average P/L per trade.
Open calculator →Trading & Risk
Stock Profit/Loss Calculator
Calculate a long or short stock trade’s gross and net result.
Open calculator →Trading & Risk
Average Purchase Price Calculator
Combine purchases at different prices into a weighted average cost.
Open calculator →Trading & Risk
Partial-Exit Profit/Loss Calculator
Calculate realized and remaining-position P/L across multiple exits.
Open calculator →Trading & Risk
Break-Even Stock Price Calculator
Find the long-sale or short-cover price that offsets specified costs.
Open calculator →Trading & Risk
Stop-Loss & Target Prices Calculator
Convert chosen stop and target percentages into price levels.
Open calculator →Trading & Risk
Trailing-Stop Price Calculator
Calculate a percentage trailing-stop level from a favorable extreme.
Open calculator →Trading & Risk
Losing Streak Impact Calculator
See how consecutive losses affect an account at different risk levels.
Open calculator →Trading & Risk
Fixed-Dollar vs. Percentage Risk Calculator
Compare fixed-dollar losses with a percentage of the remaining account.
Open calculator →Trading & Risk
R-Multiple Calculator
Express a net trade result as a multiple of its initial planned risk.
Open calculator →Trading & Risk
Profit Factor Calculator
Compare the sum of winning trades with the magnitude of losing trades.
Open calculator →Trading & Risk
Required Win Rate Calculator
Find the win rate needed to cover assumed average losses and costs.
Open calculator →Trading & Risk
ATR Stop & Position Size Calculator
Use a manually entered ATR to estimate stop distance and whole-share size.
Open calculator →Trading & Risk
Trading Frequency & Costs Calculator
Compare how two trade counts change estimated total transaction costs.
Open calculator →Trading & Risk
Strategy Outcome Simulator Calculator
Explore a reproducible range of hypothetical outcomes from a simple win/loss model.
Open calculator →Trading & Risk
Maximum Affordable Shares Calculator
Estimate whole shares affordable after reserving fixed purchase costs.
Open calculator →Trading & Risk
Percentage Price Change Calculator
Calculate the dollar and percentage change between two prices.
Open calculator →Trading & Risk
Gap-Loss Impact Calculator
Compare a planned stop loss with a worse exit after a price gap.
Open calculator →Trading & Risk
Futures Position Size Calculator
Calculate contracts from a dollar risk budget and contract tick specifications.
Open calculator →Trading & Risk
Futures Profit/Loss Calculator
Calculate directional P/L from price movement and contract tick value.
Open calculator →Trading & Risk
Forex Position Size & Profit/Loss Calculator
Size a currency trade and estimate P/L in your account currency.
Open calculator →Growth & Investing
CAGR / Annualized Return Calculator
Calculate the constant annual growth rate linking two values.
Open calculator →Growth & Investing
Investment Goal / Required Contribution Calculator
Find the monthly contribution needed for a hypothetical target.
Open calculator →Growth & Investing
Time to Investment Goal Calculator
Estimate the first month in which a hypothetical balance reaches a target.
Open calculator →Growth & Investing
Required Return to Reach a Goal Calculator
Solve for the annual return needed under a contribution plan.
Open calculator →Growth & Investing
Lump Sum vs. Monthly Investing Calculator
Compare investing a cash amount now with spreading that same cash over months.
Open calculator →Growth & Investing
Investment Fee Comparison Calculator
Compare two annual expense rates under the same investment scenario.
Open calculator →Growth & Investing
Inflation-Adjusted Growth Calculator
Separate a hypothetical future account value from its purchasing power today.
Open calculator →Growth & Investing
Dividend Income Calculator
Estimate annual and monthly-equivalent cash dividends from share count.
Open calculator →Growth & Investing
Dividend Reinvestment Calculator
Model reinvested dividends and contributions with a constant yield.
Open calculator →Growth & Investing
Total Return Including Dividends Calculator
Combine price appreciation and cash dividends without reinvestment.
Open calculator →Growth & Investing
Money Doubling Time / Rule of 72 Calculator
Compare exact compounding time with the Rule of 72 approximation.
Open calculator →Growth & Investing
Present Value Calculator
Discount a future amount into an equivalent present amount.
Open calculator →Growth & Investing
Future Purchasing Power Calculator
Calculate what a fixed future dollar amount buys after inflation.
Open calculator →Growth & Investing
Increasing Contributions Calculator
Model monthly contributions that increase once a year.
Open calculator →Growth & Investing
Savings Contribution Comparison Calculator
Compare two monthly contribution amounts under identical growth assumptions.
Open calculator →Growth & Investing
Investment Withdrawal Longevity Calculator
Explore how long a balance could last under assumed monthly withdrawals.
Open calculator →Growth & Investing
Withdrawal Amount for a Chosen Horizon Calculator
Solve for the initial monthly withdrawal that exhausts a modeled balance at the horizon.
Open calculator →Growth & Investing
Income Target / Required Capital Calculator
Estimate capital corresponding to a chosen annual cash yield.
Open calculator →Growth & Investing
Dividend Yield & Yield on Cost Calculator
Compare dividend yield on current price with yield on your purchase cost.
Open calculator →Growth & Investing
Growth with Contributions & Withdrawals Calculator
Model a balance with recurring deposits and withdrawals together.
Open calculator →Portfolio & Performance
Portfolio Allocation Calculator
Translate your own target percentages into dollar allocations.
Open calculator →Portfolio & Performance
Portfolio Rebalancing Calculator
Calculate dollar buys and sells to restore chosen target percentages.
Open calculator →Portfolio & Performance
Position Concentration Calculator
Measure the share of portfolio value in each holding.
Open calculator →Portfolio & Performance
Portfolio Dividend Income Calculator
Combine estimated cash dividends across multiple holdings.
Open calculator →Portfolio & Performance
Portfolio Gain/Loss Scenarios Calculator
Apply your own hypothetical return to each holding.
Open calculator →Portfolio & Performance
Cash Allocation Impact Calculator
Compare a chosen cash allocation with a hypothetical fully invested return.
Open calculator →Portfolio & Performance
XIRR / Money-Weighted Return Calculator
Calculate an annualized return from dated cash flows.
Open calculator →Portfolio & Performance
Time-Weighted Return Calculator
Chain subperiod returns while removing end-of-period external cash flows.
Open calculator →Portfolio & Performance
Sharpe Ratio Calculator
Measure periodic excess return relative to sample return volatility.
Open calculator →Portfolio & Performance
Sortino Ratio Calculator
Compare periodic return above a chosen target with downside deviation.
Open calculator →Portfolio & Performance
Historical Volatility Calculator
Calculate sample return volatility and its square-root annualization.
Open calculator →Portfolio & Performance
Maximum Drawdown & Recovery Duration Calculator
Analyze a dated equity curve for drawdowns and time below previous peaks.
Open calculator →Bonds
Bond Price Calculator
Estimate a plain fixed-rate bond value from coupon cash flows and a chosen yield.
Open calculator →Bonds
Bond Current Yield Calculator
Calculate annual coupon income relative to the entered market price.
Open calculator →Bonds
Bond Yield to Maturity Calculator
Solve for the nominal yield matching a plain bond’s price and cash flows.
Open calculator →Start with the question you want to answer
Planning a trade? Start with position size and risk/reward. Reviewing a strategy? Check expectancy, drawdown recovery, and trading costs. Exploring a longer-term scenario? Use compound growth.
Turn the numbers into a test
A calculator explains the arithmetic. A backtest explores how supported daily trading rules behaved on historical stock data. Read the assumptions of each before comparing results.
Educational planning tools. Outputs depend on your inputs and assumptions; they are not predictions or personalized investment advice.