SizeGuardHome › Guides › R multiples explained
R multiples explained
R is the money you planned to risk. Measuring results in R makes every trade comparable.
What is 1R?
1R is the loss you accept if your stop is hit. If you risk $250, then 1R = $250. A trade that makes $500 is +2R; a stopped-out trade is −1R.
How to calculate it
R multiple = profit or loss ÷ planned risk. A $375 win on a $250 risk is +1.5R. A $300 loss on a $250 risk is −1.2R, a sign of slippage or a moved stop.
Why R beats dollars and win rate
Dollar results change when your size changes. R does not. And win rate alone says little: winning 40% of trades at +2.5R averages +0.4R per trade, while winning 70% at +0.3R with −1R losses averages −0.09R.
Expectancy
Expectancy = win rate × average win − loss rate × average loss, all in R. Try your numbers in the free expectancy calculator.
Get the SizeGuard app
Same math, in your pocket: SizeGuard remembers your risk, picks standard or micro for you, adds fees and daily loss limits, and logs every trade in a journal. Works offline, no account.
Free 7-day trial, then a one-time $9.99 unlock. No subscription.