Risk/Reward Ratio Calculator
Compare a trade's potential reward with its risk and see the win rate you need to break even.
Entry 100 · Stop 95 · Target 110 → 1:2
Open calculator Trading calculators
Master your
trading mathematics.
52 precise calculators for position sizing, risk/reward, returns, Sharpe & Sortino ratios, drawdown, VaR and technical indicators — with live charts that show you what the numbers mean.
Try it: position size
$25,000
1%
4%
2.5R
Position size62.5 shares @ $100$6,250 position · 0.25× balance
Risk / reward1:2.5break-even win rate 28.6%
risk −$250.00reward +$625.00
Calculators
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Search by name or by the question you're trying to answer. Star the ones you use most — favorites and recent calculators are saved on this device.
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Position Size Calculator
Find how many shares, coins, lots or contracts to trade so a stop-out costs exactly what you planned.
$10,000 · 1% risk · 5 point stop → 20 units
Open calculator R-Multiple Calculator
Express any trade result in units of initial risk and analyse a series of trades in R.
Risk $100 · Profit $300 → +3R
Open calculator Trading Profit & Loss Calculator
Calculate gross and net P/L for long or short trades, including fees, funding and break-even price.
Long 10 @ 100 → exit 110 = +$100
Open calculator Compound Growth Calculator
Model how repeated gains, losses, risk per trade and deposits shape your equity curve over time.
$1,000 · +1% × 10 trades → $1,104.62
Open calculator Sharpe Ratio Calculator
Measure excess return per unit of volatility from annual figures or a series of returns.
12% return · 2% Rf · 8% σ → 1.25
Open calculator CAGR Calculator
Find the compound annual growth rate between two values over any number of years, months or days.
$10,000 → $16,105 in 5 years → 10.00%
Open calculator Trading Expectancy Calculator
Combine win rate, average win and average loss into expected profit per trade — in money and in R.
45% · avg win $180 · avg loss $100 → +$26
Open calculator Maximum Drawdown Calculator
Find the largest peak-to-trough decline in an equity curve, its duration and the gain needed to recover.
$12,000 → $9,000 → −25% (needs +33.3%)
Open calculator RSI Calculator
Calculate the Relative Strength Index with Wilder or simple averaging and see overbought/oversold readings.
Avg gain 0.714 / avg loss 0.357 → RSI 66.67
Open calculator Pivot Point Calculator
Calculate standard, Fibonacci, Camarilla, Woodie and DeMark pivot points from the previous high, low and close.
H 110 · L 90 · C 100 → P 100, R1 110, S1 90
Open calculator Fibonacci Retracement Calculator
Calculate 23.6%, 38.2%, 50%, 61.8% and 78.6% retracements plus extensions for any swing.
Low 100 · high 200 → 61.8% at 138.20
Open calculator Interactive playground
What happens if you change your trading parameters?
Move the sliders and watch 300 simulated trading accounts react. Same edge, different luck — this is what risk per trade really controls.
Your parameters
$10,000
1%
45%
Break-even at 33.3% for a 2R average win
2R
200
Expectancy / trade+0.35R
Median final balance$19,674
Chance of profit100%
Median max drawdown9.6%
300 simulated equity curves
10th–90th percentileMedianOne possible path
Each trade earns 0.35R on average. Notice how wide the band is: identical statistics, different luck. Try doubling the risk — the median rises, but so does the drawdown you must sit through.
Hypothetical simulation with constant win rate and reward, independent trades and no costs. It illustrates the maths of risk — it does not predict returns.
Open in Compound GrowthLearn
Trading mathematics, explained
Short, practical guides to the concepts behind each calculator — written to be read before your next trade, not after your next mistake.
7 min read
What Is the Risk/Reward Ratio? How to Use It in Trading
What the risk/reward ratio measures, how it links to win rate and expectancy, and why a 'good' ratio depends on your strategy.
7 min readWhat Is an R-Multiple? Measuring Trades in Units of Risk
How R-multiples normalise trade results, how to read an R distribution, and how average R becomes your system's expectancy.
8 min readPosition Sizing Explained: How Much to Risk per Trade
Fixed-fractional sizing, how stop distance sets your size, forex lots and pip value, and why consistent risk matters more than entries.
6 min readTrading Profit and Loss: Gross vs Net, Fees and Break-Even
How to calculate P&L for long and short trades, why costs matter more than they look, and how to find your true break-even price.
8 min readCompound Growth in Trading: Why Drawdowns Hurt More
Arithmetic vs geometric returns, volatility drag, the asymmetry of losses and what realistic compounding looks like.
Sister site · TradingDefinedTrading dictionary
Plain-English definitions of every trading term — expectancy, drawdown, pip value, profit factor and hundreds more.
FAQ
Frequently asked questions
Are these trading calculators free?
Yes. Every calculator is free, needs no account and runs entirely in your browser. Nothing you type is stored on a server or sent to analytics.
Which calculator should I start with?
If you are planning a trade, start with the position size calculator to fix how much you risk, then check the setup with the risk/reward calculator. After the trade, measure the outcome with the R-multiple calculator.
How accurate are the results?
The formulas are exact and covered by automated tests, including long and short trades, fees and forex conversions. Results are only as good as the inputs, though: spreads, slippage and changing conditions mean real outcomes differ from any calculation.
Can I share a calculation?
Yes. Every calculator keeps its inputs in the page URL. Use the Share button to copy a link that opens the exact same setup — handy for trading journals, mentors or forum posts.
Do the simulations predict how much I will make?
No. The playground and compound growth simulations show what the maths implies if your win rate, reward and risk stay constant. Markets don't keep them constant. Use them to understand risk, never as a forecast.
Is this financial advice?
No. The calculators and guides are educational tools for planning and analysis. Trading involves substantial risk of loss.