Forex Stop-Loss Calculator
Find the stop-loss price in pips and price terms for a chosen risk.
Please note: Forex trading carries a high risk of loss, amplified by leverage. Exchange rates must be entered manually — no live market data is used.
What the Forex Stop-Loss Calculator does
Given a fixed position size and a fixed amount you can afford to lose, the stop distance follows directly. If the resulting stop sits somewhere the market can reach on noise alone, the position is too large.
Formula
Pip value = Pip size × Units × Conversion rateStop pips = Risk amount ÷ Pip valueStop price = Entry ∓ Stop pips × Pip size
Inputs explained
| Input | Unit | Required | Notes |
|---|---|---|---|
| Direction | one of 2 options | Yes | — |
| Entry price | number | Yes | Accepts more than 0. |
| Amount you can risk | selected currency | Yes | Accepts more than 0. |
| Trade size (lots) | number | Yes | Accepts more than 0. |
| Lot type | one of 4 options | Yes | — |
| Pip size | one of 3 options | Yes | — |
| Quote → account currency rate | number | Yes | Accepts more than 0. |
| Currency | one of 10 options | Optional | — |
How to use it
- Choose Direction and Lot type.
- Enter Entry price, Amount you can risk, Trade size (lots) and Quote → account currency rate.
- Select Calculate.
Worked example
Long EUR/USD at 1.0900, 1 standard lot, risking $250.
- Direction
- Buy
- Entry
- 1.0900
- Risk
- 250
- Lots
- 1
$250 ÷ $10 = 25 pips, so the stop sits at 1.0875.
Reading the result
- This works backwards from the position-size calculator: that one fixes the stop distance and solves for lot size, this one fixes lot size and risk and solves for the stop distance — the right tool depends on whether a technical stop level or a fixed position size is the actual constraint.
- "Distance as a percentage" is useful for sanity-checking the stop against typical volatility — a stop under a tenth of a percent of price is extremely tight for most major pairs and likely to be hit by noise alone.
Assumptions and limitations
- The calculator finds a mathematically valid stop for any entered risk and lot size, including one that sits unrealistically close to entry — it does not itself check whether the resulting distance makes technical sense for the instrument.
Common mistakes
- Reducing lot size to hit a target stop distance without checking that the wider resulting stop still respects where the trade idea is actually invalidated — this inverts the workflow the explanation describes, which starts from the invalidation point, not the desired stop size.
- Reusing the same dollar risk amount and pip target across pairs of very different volatility as if that were a like-for-like comparison — the same risk produces a very different price distance depending on the pair.
Frequently asked questions
What if the required stop is too tight?
Reduce the lot size. That widens the stop for the same currency risk and gives the trade room to breathe.