R-Multiple Explained: Measure Every Trade in Risk
In this article
"I made $600 today" tells you almost nothing. Did you risk $100 to make it, or $2,000? Was it one disciplined trade or three oversized ones? R-multiples answer that by measuring every result against the risk you planned to take.
The idea was popularised by trading coach Van K. Tharp, who described R-multiples simply as "multiples of your initial risk". It is the most useful single unit a trader can learn.
What 1R means
1R is the amount you planned to lose if your stop was hit.
It comes from three numbers you know before you enter:
1R = |entry − initial stop| × dollars per point × size
Once you know 1R, every result can be expressed as a multiple of it:
R-multiple = profit or loss ÷ 1R
A trade that loses exactly the planned amount is −1R. A trade that makes three times the risk is +3R. A trade that closes at breakeven is 0R.
Worked examples
NQ (E-mini Nasdaq-100, $20 per point)
- Long 1 NQ at 24,118.25, initial stop 24,098.00.
- Risk = 20.25 points × $20 × 1 = $405, so 1R = $405.
- Exit at 24,179.00: profit = 60.75 points × $20 = $1,215.
- R-multiple = $1,215 ÷ $405 = +3.0R.
MES (Micro E-mini S&P 500, $5 per point)
- Short 6 MES at 6,512.00, initial stop 6,518.00.
- Risk = 6 points × $5 × 6 = $180.
- Exit at 6,509.00: profit = 3 points × $5 × 6 = $90.
- R-multiple = $90 ÷ $180 = +0.5R.
XAUUSD ($100 per $1.00 move per standard lot)
- Long 0.50 lots, initial stop $5.00 below entry.
- Risk = $5.00 × $100 × 0.50 = $250.
- The trade is stopped out, but slippage fills it $0.40 beyond the stop: loss = $5.40 × $100 × 0.50 = $270.
- R-multiple = −$270 ÷ $250 = −1.08R.
That last trade is worth noticing. Losses slightly worse than −1R are normal with slippage. Losses of −1.5R or −2R mean the stop wasn't respected, and your journal should flag them.
Why R beats dollars
It removes size from the picture. If you trade 2 MNQ in January and 5 in March, dollar results can't be compared. R results can.
It works across markets. A +2R trade on gold and a +2R trade on ES are equally good relative to the risk taken, even if one paid $300 and the other $1,000.
It exposes risk mistakes. A day of +$600 that came from +0.3R on an oversized trade looks very different from +$600 at +2.4R.
It's what prop firms really measure. A $2,000 drawdown at $200 per trade is a 10R budget. Thinking in R makes the evaluation maths obvious, as we show in how to pass a prop firm challenge.
Expectancy: your average R per trade
Tharp defined expectancy as the average R-multiple a system produces. It's the number that tells you whether a strategy is worth trading.
Here is a sample of 10 trades:
| Trade | Result (R) |
|---|---|
| 1 | +2.0 |
| 2 | −1.0 |
| 3 | −1.0 |
| 4 | +3.1 |
| 5 | −0.5 |
| 6 | −1.0 |
| 7 | +1.5 |
| 8 | −1.0 |
| 9 | +0.8 |
| 10 | −1.2 |
| Total | +1.7R |
- Expectancy = +1.7R ÷ 10 trades = +0.17R per trade.
- Win rate = 4 of 10 = 40%.
- Average winner = 7.4R ÷ 4 = 1.85R. Average loser = 5.7R ÷ 6 = 0.95R.
- Check: 0.40 × 1.85 − 0.60 × 0.95 = 0.74 − 0.57 = +0.17R.
If your 1R is $250, an expectancy of +0.17R is worth about $42.50 per trade on average, before fees. A month of 40 trades at that rate would be about +6.8R. Ten trades is far too few to trust that number, though; more on that below.
Once you know your win rate and average R, the risk of ruin calculator shows the chance a prop account hits its drawdown before its target at your risk per trade.
Win rate and reward: the break-even table
The lower your average winner in R, the higher the win rate you need just to break even:
| Average winner | Break-even win rate |
|---|---|
| 1R | 50% |
| 1.5R | 40% |
| 2R | 33.3% |
| 3R | 25% |
The formula is 1 ÷ (1 + average winner in R), assuming losers are −1R. This is why a 70% win rate can still lose money if the average winner is 0.4R and the average loser is −1.2R.
Reading your R distribution
The average hides a lot. Two strategies can both have +0.2R expectancy and feel completely different to trade. Once you have 50 or more trades, group them into buckets:
| Bucket | What it usually means |
|---|---|
| Below −1.2R | Stop not respected, slippage on news, or size errors |
| −1.2R to −0.8R | Normal full losses |
| −0.8R to +0.5R | Scratches, early exits and breakeven stops |
| +0.5R to +2R | Ordinary winners |
| Above +2R | The runners that usually pay for everything else |
Three things to look for:
- A fat left tail. If more than a handful of trades sit below −1.2R, your stop isn't really your stop. Fix execution before anything else.
- A crowded middle. Lots of trades between −0.3R and +0.3R often means you're cutting trades before they have a chance to work, or moving to breakeven too early.
- Where the profit comes from. Many trend-following and breakout styles make most of their money from a minority of large winners. If that's you, taking profits early to raise your win rate can quietly destroy the edge.
Using R for limits and goals
R also makes risk rules simple to state and easy to follow:
- Daily stop: −2R or two full losses, whichever comes first.
- Weekly stop: −5R. If the week reaches it, the rest of the week is for review and backtesting.
- Profit goal: set in R, not dollars. "+8R this month" keeps working when your size changes; "$3,000 this month" quietly pushes you to size up.
For prop accounts, convert the drawdown into R. A $2,000 drawdown at $200 per trade is 10R; at $250 it is 8R. That one number tells you how many full losses you can survive. The full plan, from drawdown to daily stop, is in risk management for prop traders.
R by setup, session and grade
R becomes most useful when you split it. Expectancy per setup tells you which strategies to keep. Expectancy per session tells you when to trade. And if you grade setups before entry, expectancy per grade tells you whether your checklist actually separates good trades from average ones.
A simple test: take your last 50 trades, split them into "followed all rules" and "broke at least one rule", and compare the average R of each group. The difference, multiplied by the number of rule-breaking trades, is roughly what your discipline cost you.
Partial exits
When you scale out, add up the dollar results and divide by the original 1R.
- Long 4 MNQ, stop 15 points away: 1R = 15 × $2 × 4 = $120.
- Close 2 contracts at +15 points: 15 × $2 × 2 = $60.
- Close 2 contracts at +45 points: 45 × $2 × 2 = $180.
- Total $240 ÷ $120 = +2.0R.
Choosing your 1R
R is a unit, so you choose its size. Most traders pick a fixed dollar amount or a small, fixed percentage of the account, and keep it stable for weeks at a time. Changing 1R after every win or loss makes your averages harder to read and invites emotional sizing.
Three practical guides:
- Personal accounts: a fraction of a percent to 1% of the balance per trade is a common range. Smaller is easier to sit through.
- Prop accounts: set 1R from the drawdown, not the account size. If a $2,000 drawdown should survive at least eight full losses, 1R can't be more than $250.
- New strategy: start at half your normal R for the first 20 to 30 live trades, then return to full size if execution matches the backtest.
Once 1R is set, position size follows from the stop: a wider stop means fewer contracts, not more risk. Our guide to position size for NQ, ES and gold walks through the arithmetic for each market.
Five common R mistakes
- Measuring from a moved stop. Always use the initial stop. If you trailed it to breakeven, the result is 0R, and that is the truth.
- Trades without a stop. If there was no stop, there was no defined risk. Record what your stop should have been and tag the trade.
- Ignoring fees. On micros, commissions can be a meaningful share of a small R. Track R before and after fees.
- Changing 1R every trade. R stays comparable when your dollar risk is fairly stable. Big swings in size make averages harder to read.
- Judging too early. With a standard deviation around 1.5R per trade, an average over 30 trades is uncertain by roughly ±0.5R at 95% confidence. At 100 trades the margin is still about ±0.3R, and showing that a +0.2R expectancy is really above zero takes over 200 trades. Our backtesting guide shows the maths.
Tracking R in practice
In a spreadsheet, R needs four inputs: entry, initial stop, exit and direction. Our trading journal template has the formulas ready to copy.
In TJ, you type the prices and size in Log It!, and risk, R and P&L fill themselves using the right point value for NQ, MNQ, ES, MES, gold and other markets. Every report in Review shows R, including R by checklist grade, so you can see whether your A+ setups really earn more than your B setups.
Whatever you use, make R the first number you look at after every trade, and dollars the second.
Not financial advice. Examples are illustrations of the maths, not trade ideas, and past results never predict future results.
FAQ
What does 1R mean in trading?
1R is your initial risk on a trade: the distance from entry to the initial stop, multiplied by the dollars per point and your size. If you risk $250, then 1R is $250, a $500 winner is +2R and a full stop-out is −1R.
How do you calculate an R-multiple?
Divide the trade's profit or loss by the initial risk. For a long trade in points: (exit − entry) ÷ (entry − initial stop). For a short trade: (entry − exit) ÷ (initial stop − entry).
What is a good expectancy in R?
Any reliably positive number is useful, but the sample matters more than the size. A small positive expectancy such as +0.2R per trade can be worth trading, yet over 30 trades it can easily be noise. Judge it over at least 100 trades, ideally a few hundred.
Is R-multiple the same as risk-reward ratio?
Not quite. Risk-reward is what you plan before the trade, such as a 1:3 target. The R-multiple is what actually happened. A trade planned at 1:3 that you exit early might end at +1.4R.
What if I moved my stop during the trade?
Keep measuring R from the initial stop. If you moved the stop to breakeven and got stopped out, that trade is 0R. If you widened the stop and lost more, the result is worse than −1R, which is exactly what your journal should show.
Grade your next setup before you click
TJ scores every setup against your own checklist, logs the trade in seconds and keeps your prop-firm limits in view. Free for 3 days, then pick a plan.