Forex Commission Calculator
Calculate broker commission per lot and the total cost of a round turn.
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 Commission Calculator does
Commission-based forex accounts charge a fixed fee per lot traded, usually on both entry and exit, in exchange for much tighter spreads. Total cost per round turn is what matters when comparing brokers.
Formula
Commission = Lots × Rate per lot × Sides charged
Inputs explained
| Input | Unit | Required | Notes |
|---|---|---|---|
| Trade size (lots) | number | Yes | Accepts more than 0. |
| Commission per lot per side | selected currency | Yes | Accepts 0 or more. |
| Charged on | one of 2 options | Yes | — |
| Trades per month | number | Optional | Accepts 0 or more. |
| Currency | one of 10 options | Optional | — |
How to use it
- Choose Charged on and Currency.
- Enter Trade size (lots) and Commission per lot per side.
- Optionally add Trades per month.
- Select Calculate.
Worked example
2 lots at $3.50 per lot per side, round turn.
- Lots
- 2
- Per lot
- 3.50
- Sides
- Both
2 × $3.50 × 2 = $14 per round-turn trade.
Frequently asked questions
Commission account or spread-only?
Add the two together. A 0.1-pip spread plus $7 round turn on a standard lot is $8 total; a 1.2-pip spread-only account is $12. The commission account wins here.