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R-multiple explained: the number that decides your prop firm challenge
By the TradeNotes team · Published 2026-11-15 · 7 minute read
R-multiple is a trade's result measured in units of what you risked. Risk $200, make $500: that trade was +2.5R. Lose the $200: −1R. That's the whole idea. It sounds simple, but it changes how you see your trading, and it's the fastest way to work out whether a prop firm challenge is realistic for you before you pay for one.
How to calculate R-multiple
Two steps:
1R (initial risk) = |entry − stop loss| × position size
R-multiple = net profit or loss ÷ 1R
Forex example: long EURUSD at 1.0850, stop at 1.0820 (30 pips), 1 standard lot (about $10 a pip). 1R = 30 × $10 = $300. You exit at 1.0910 for +60 pips, which is $600, or $593 after $7 of fees. R-multiple = 593 ÷ 300 = +1.98R.
Futures example: short 1 NQ at 21,050, stop at 21,070 (20 points × $20 = $400 risk). You move your stop, get stopped at 21,070 anyway, and pay $4 in fees. Result: −$404 = −1.01R.
No stop loss means no defined risk, and so no R-multiple. That's one more reason to always set one.
Free R-multiple calculator
Try your own numbers. The second calculator turns your prop firm challenge rules into R, which is the part most traders never do.
1. R-multiple of one trade
Long trade. Risk = 0.00300 per unit.
+2.00R
Price-based R, before fees. Fees make the real result slightly lower.
2. Your prop firm challenge in R
- 1R =
- $500
- Target =
- 20R
- Max loss =
- 20 losing trades in a row
- Daily limit =
- 10 losses in one day
Why R beats dollars (and percentages)
- It compares trades fairly. A $600 win on a $300 risk (+2R) and a $600 win on a $1,200 risk (+0.5R) look the same in dollars. In R, one is four times better.
- It survives account changes. Move from a $10k account to a $100k challenge and your dollar history stops making sense. Your R history doesn't change.
- It exposes risk mistakes. A loss of −2.4R means you moved your stop, sized too big, or slipped badly. Dollars hide that. R makes it obvious.
- It leads to expectancy. Your average R over many trades is your expectancy in R, the clearest single sign of whether your process has an edge. More on expectancy.
Your prop firm challenge, measured in R
Here's the maths that should shape how you trade a challenge. Take a typical two-step evaluation with a 10% profit target, 10% max loss and 5% daily loss limit. Rules differ between firms, so use your own firm's numbers in the calculator above.
| Risk per trade | Target | Max loss | Daily limit |
|---|---|---|---|
| 2% | 5R | 5 losses | 2.5 losses |
| 1% | 10R | 10 losses | 5 losses |
| 0.5% | 20R | 20 losses | 10 losses |
Now add your expectancy in R. If your last 50 trades average +0.25R, then:
- At 1% risk, a 10R target takes about 10 ÷ 0.25 = 40 trades on average.
- At 0.5% risk, a 20R target takes about 80 trades, but it takes 20 straight losses to fail on max loss instead of 10.
- At 2% risk you'd need only about 20 trades, but just 5 losses in a row, which happens to most strategies regularly, ends the challenge.
The lesson: raising risk to pass faster mostly makes it more likely to fail. And if your expectancy in R is zero or negative, no risk setting will pass reliably. Fix that first, on a demo or a small account, before you pay for another evaluation.
These are averages, not promises. Real results come in streaks, so a strategy with positive expectancy can still fail a challenge on a bad run. Treat this as planning, not a forecast.
How to start tracking R today
- Before every trade, write down the entry, stop and size. That fixes your 1R.
- After the trade, record the net result and divide by 1R.
- Tag any rule you broke: moved stop, oversized, revenge trade.
- Every 30 trades, add up your total R and your R by setup. Find the setup to keep and the mistake that cost the most.
A spreadsheet works. Our free template below has the R column built in. Or let TradeNotes do it: enter your stop and it calculates R, expectancy, R by setup and your costliest mistake for you, free for 50 trades. See it with sample data.
Free: trading journal template with R-multiple column
A ready-to-use spreadsheet (R-multiple column included) and the checklist we use to review every 30 trades. Free, no account needed.
FAQ
What is R-multiple in trading?
R-multiple is a trade's result divided by the amount you planned to risk on it (1R). If you risk $200 and make $500, the trade was +2.5R. If you lose $200, it was −1R.
How do you calculate R-multiple?
Initial risk (1R) = |entry − stop loss| × position size. R-multiple = net profit or loss ÷ initial risk. Without a stop loss there is no defined risk, so there is no R-multiple.
What is a good R-multiple?
No single trade's R matters much. What matters is your average R over many trades (expectancy in R). Above 0 means you made money per unit of risk. Many traders aim for losses close to −1R and an average winner of +1.5R or more, but a high win rate with smaller winners can also work.
How many R do I need to pass a prop firm challenge?
Divide the profit target by your risk per trade. A 10% target with 0.5% risk per trade is 20R. A 10% max loss at the same risk is 10 full losses in a row.
Is risking 1% per trade too much on a prop firm challenge?
It depends on the loss limits. With a 5% daily limit, 1% risk means 5 losses end your day. With 0.5% it takes 10. Smaller risk makes the target take more trades but makes the account much harder to fail on a bad streak.
Educational content only, not financial advice. Prop firm rules vary and change. Check your firm's current rules. Trading involves substantial risk of loss, and most traders lose money.