A forex risk-to-reward calculation compares the loss planned at your stop with the gain planned at your target. I use it as a planning measure, not a prediction that either exit will happen at the intended price.
The calculation becomes more useful when you account for position size and trading costs. Start with the price levels you intend to trade, then translate the distances into an estimated cash outcome.
Key Takeaways
- Risk:reward compares the planned entry-to-stop distance with the entry-to-target distance. A 1:3 ratio means the potential reward is three times the planned risk.
- A EUR/USD trade with a 20-pip stop and a 60-pip target has a 1:3 ratio before costs.
- Position size and pip value determine what those distances mean in your account currency.
- Spreads, commissions, financing and execution differences can worsen the final outcome.
- An ordinary stop doesn’t guarantee its trigger price, and no ratio establishes whether a trade will succeed.
How to Calculate Risk-to-Reward Before Entering a Forex Trade
The formula I use is:
Risk:reward = entry-to-stop distance : entry-to-target distance
Both distances must use the same unit, usually pips. Divide each side by the risk distance to express the ratio with one unit of risk. For example, 20:60 becomes 1:3.
Some platforms and traders reverse the convention and describe the same trade as 3:1 reward:risk. The numbers alone can therefore be misleading unless you know which side represents risk.
Measure the entry-to-stop risk and entry-to-target reward
For a long trade, subtract the stop price from the entry price to find the risk distance. Then subtract the entry from the target to find the reward distance. For a short trade, where you expect the price to fall, reverse those subtractions.
A pip is usually 0.0001 for most currency pairs and 0.01 for pairs quoted in Japanese yen. Some platforms show an extra decimal place for a fraction of a pip, often called a pipette.
Consider this hypothetical EUR/USD long trade:
| Price level | Price | Distance from entry |
|---|---|---|
| Entry | 1.0800 | Starting price |
| Stop | 1.0780 | 20 pips of planned risk |
| Target | 1.0860 | 60 pips of planned reward |
The calculation is 20:60, or 1:3 risk:reward, before costs. If the target were only 40 pips away, the same stop would produce 1:2.
For a short trade, an entry at 1.0800, stop at 1.0820 and target at 1.0740 would also produce 20 pips of risk and 60 pips of reward. These are arithmetic examples, not suggested price levels.
Turn pip distances into estimated cash risk
The ratio compares price distances. Your cash exposure depends on the position size and the value of each pip in your account currency.
For a hypothetical 10,000-euro EUR/USD position in a US-dollar account, one pip is worth approximately US$1. At that size, the 20-pip stop represents US$20 of planned price risk, whilst the 60-pip target represents US$60 of planned price reward, before costs.
A larger position changes both cash figures without changing the 1:3 ratio. Pip value also depends on the pair and any conversion into your account currency. Our guide to forex pip value explains how those inputs affect the calculation.
Adjust the planned forex risk-to-reward ratio for trading costs
The initial ratio is a gross comparison. Spread, commission and other applicable charges can reduce the net gain at the target or increase the net loss at the stop.
Costs depend on the instrument, account, provider and holding period. A lower quoted spread doesn’t establish that one account is cheaper once commission and financing are included.
Check whether the spread is large compared with the stop
The spread is the difference between the bid price, at which you sell, and the ask price, at which you buy. Its size matters particularly when the planned stop is narrow.
A 0.8-pip spread is about 3% of a 25-pip stop distance. Against a 5-pip stop, the same spread is 16%. Those figures show the spread’s scale relative to the stop; they aren’t a complete calculation of either trade’s cost.
If a long trade’s entry uses the ask and its exit uses the bid, those price assumptions already reflect the spread. Adding the same spread again would overstate the cost. Commission, where applicable, needs separate treatment.
As a simple cash illustration, suppose a trade has a planned US$20 price loss or US$60 price gain, with US$2 of separate costs in either outcome. The estimated net loss becomes US$22 and the net gain US$58, giving roughly 1:2.64 rather than 1:3.
That illustration doesn’t assign a fee to any provider. For account comparisons, I would use the same instrument, trade size and conditions, rather than compare one advertised minimum with another account’s typical spread. Our guide to fixed and variable spreads explains the difference.
Allow for slippage, gaps and overnight charges
An ordinary stop is an instruction to exit when its trigger condition is met. It doesn’t guarantee a fill at that price. During fast markets, price gaps or periods of limited liquidity, the order may execute further away and the loss may exceed the plan.
Slippage is the difference between the expected price and the fill price. It can be favourable or unfavourable, so a fixed estimate cannot describe every execution.
Overnight financing, sometimes called swap or rollover, may apply to leveraged positions held beyond the relevant cut-off. It can be a charge or a credit, depending on the position and terms. Currency conversion can also affect the final amount in your account.
Use the ratio to assess a trade, not to predict its outcome
A higher potential reward doesn’t establish that a trade has a better chance of making money. A distant target may look attractive on paper but may be less likely to be reached than a closer one.
The trade plan matters as much as the arithmetic. I would consider why the stop and target belong at those levels, rather than moving them solely to produce an appealing ratio. Costs and execution also affect the result.
As a mathematical illustration, a system that always gains 3 units on a win and loses 1 unit on a loss would need a 25% win rate to break even before costs. Actual trades can close at other prices, so that figure is an assumption, not a forecast.
Keep position size and total exposure in view
Position size translates the stop distance into money at risk. The calculation starts with a chosen cash amount, rather than the maximum position a broker permits:
Position size in lots = planned cash risk ÷ (stop distance in pips × pip value per lot)
For example, if a EUR/USD position has a pip value of US$1 per 10,000 euros, a 20-pip stop implies US$20 of price risk at that size. A US$50 price-risk budget would correspond to 25,000 euros, before costs and execution differences.
No single cash amount or account percentage suits everyone. Our explanation of forex position sizing covers the calculation in more detail.
Open positions also need to be considered together. Two trades involving the same currency can share exposure to a market move, even if each has its own stop.
Margin is collateral supporting a position. It isn’t the potential loss or a guaranteed loss cap. How forex margin works explains why a small deposit can support a much larger exposure.
Know what a planned ratio leaves out
A calculated ratio assumes the intended entry, stop and target prices. An order may fill elsewhere, a target may not be reached, and charges can alter both outcomes. The ratio also cannot establish whether a trade suits your circumstances.
Product differences matter. Deliverable spot forex involves exchanging currencies, whilst a forex contract for difference (CFD) is a derivative. Available products, account classifications and protections vary across European countries and providers.
The European Securities and Markets Authority’s CFD intervention measures addressed risks for covered retail clients. They shouldn’t be treated as identical protections for every forex product or jurisdiction.
Frequently Asked Questions
Is a 1:2 risk-to-reward ratio always good?
No ratio is automatically good. A 1:2 plan needs a realistic target, a coherent reason for the stop and an assessment of costs. Its usefulness also depends on how often the planned outcomes occur.
Should the ratio include the spread?
The estimated net outcome should reflect the spread. If your assumed entry and exit prices already use the relevant bid and ask, don’t subtract it again. Add any separate commission and other applicable charges.
Does a stop-loss cap the amount I can lose?
An ordinary stop doesn’t guarantee its trigger price. Gaps, fast price movements and limited liquidity can produce a worse fill, so the realised loss can exceed the amount planned.
Is risk-to-reward the same as position sizing?
No. Risk:reward compares the distances between entry and the planned exits. Position sizing uses the cash amount at risk, stop distance and pip value to calculate a trade size.
Can a high ratio make a losing strategy profitable?
The ratio alone cannot establish profitability. Results depend on how often trades win, the actual average gains and losses, and the costs incurred. A large planned target has little value if trades rarely reach it.
Put the Calculation in Context
Set the entry, stop and target first. Then calculate the pip distances and express them as risk:reward.
I would follow that comparison with the cash effect of the position size, applicable costs and possible execution differences. The final figure is an estimate for planning, not a guarantee against loss.
