See if a currency trade made money. This free currency exchange profit calculator works out your profit or loss from converting money and back at different rates — fees included.
Buy converts your money into the second currency; sell converts it back. Enter the rates you actually get.
Estimate only. Uses the rates and fees you enter — not live market rates. Currency trading carries risk.
How Currency Exchange Profit Calculator Works
Trading one currency for another and back again only pays off if the rates move in your favor by more than what fees eat away. This currency exchange profit calculator applies your actual buy and sell rates — plus any fee charged on each conversion — to show whether the round trip left you ahead or behind.
Formula: Converted Amount = (Starting Amount × Buy Rate) × (1 − Fee%). Amount Back = (Converted Amount ÷ Sell Rate) × (1 − Fee%). Profit / Loss = Amount Back − Starting Amount. Return % = (Profit ÷ Starting Amount) × 100.
- Starting amount — the amount of your home currency you convert at the start of the trade
- Buy rate — the rate you get converting your starting currency into the second currency (1 unit = ? of the second currency)
- Sell rate — the rate you get converting the second currency back into your starting currency
- Fee per exchange (optional) — the percentage fee charged on each conversion, applied once when you buy and again when you sell
Example Scenarios
| Starting Amount | Buy Rate | Sell Rate | Fee | Profit / Loss |
|---|---|---|---|---|
| $1,000 | 0.90 | 0.85 | 0% | +$58.82 (+5.88%) |
| $2,000 | 0.92 | 0.88 | 0% | +$90.91 (+4.55%) |
| $500 | 1.05 | 1.10 | 0% | -$22.73 (-4.55%) |
| $1,000 | 0.90 | 0.85 | 0.5% | +$48.26 (+4.83%) |
| $5,000 | 1.00 | 0.95 | 0% | +$263.16 (+5.26%) |
Currency Exchange Profit Calculator FAQ
What’s the difference between the buy rate and the sell rate in this calculator?
The buy rate is what you get converting your starting currency into the second currency. The sell rate is what you get converting it back. Enter the actual rates your bank, card, or exchange applied to each leg of the trade, not a quoted mid-market rate.Why does a fee reduce my profit twice?
Because a round-trip currency exchange involves two separate conversions — buying the second currency and later selling it back. If your provider charges a fee on each transaction, that fee is deducted twice: once on the way out and once on the way back.Can I use this for cryptocurrency conversions instead of fiat currency?
Yes. The calculator only needs a starting amount, a buy rate, and a sell rate — it doesn’t care whether those rates come from a fiat currency pair or a crypto exchange, as long as you enter the actual rates you traded at.If my sell rate is higher than my buy rate, does that always mean a loss?
With this calculator’s convention, a higher sell rate means you need more of the second currency to buy back one unit of your starting currency, which typically produces a loss. A lower sell rate than your buy rate is what generates a profit here.Does this calculator use live, real-time exchange rates?
No. It only uses the buy rate, sell rate, and fee you type in — it does not pull live market data. This makes it useful for checking a completed or planned trade against the rates you were actually quoted.How do I find the buy and sell rates my bank or exchange actually charged me?
Check your transaction receipt, app confirmation screen, or bank statement — most providers show the exact rate applied to each conversion. These are usually different from the mid-market rate you’d see on a general currency converter.Related Calculators
If you regularly move money between currencies, the currency converter calculator is handy for checking a rate before you commit to a trade. Once you know your profit or loss, the ROI calculator can help compare it against other investments, while the interest calculator shows what that same money could have earned sitting in an interest-bearing account instead.