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About this tool
Calculate profit or loss on currency exchanges and forex trades. Track buy/sell rates, position size, and swap fees.
The Currency Profit/Loss Calculator works out the gain or loss on a foreign exchange position using the standard formula P&L = (sell rate − buy rate) × amount, and expresses it as a percentage of what the position cost you. Enter the rate you bought at, the rate you exited at, and the size of the position in the foreign currency, and it returns the total buy cost, the total sell value, the rupee gain or loss and the return percentage rounded to two decimals. It is arithmetic on the numbers you supply, so it works for a travel-money exchange just as well as for a closed forex trade.
Open Currency Profit/Loss Calculator on AltFTool — it loads instantly in your browser.
Fill in Buy Rate (Entry), Sell Rate (Exit) and Amount in Foreign Currency — the three fields the form renders.
Enter your trade details including the base currency, quote currency, buy rate, sell rate, position size, and any swap fees.
Review the calculated profit or loss based on the inputs provided.
You get the rupee figure and the return on cost together, so a 70-paise move on 1,000 units is immediately comparable with a smaller move on a bigger position.
Total buy cost and total sell value are reported alongside the P&L, which makes an entry-rate typo obvious instead of silently distorting the answer.
Because the calculation is a direct formula rather than a fitted model, changing the sell rate until the result reaches zero gives you the exact break-even rate.
Profit or loss equals (sell rate − buy rate) × the amount of foreign currency held. Buying 1,000 units at 83.50 and selling at 84.20 gives (84.20 − 83.50) × 1,000 = ₹700, which is a 0.84% return on the ₹83,500 cost.
No — it compares two clean rates, so the figure is your gross P&L. Real costs sit in the gap between the buy and sell rates a broker or exchange counter quotes you, plus any commission or overnight swap, and those reduce what you actually keep.
Enter the rate you were actually charged to buy and the rate you were actually paid to sell, not the mid-market rate you saw quoted. The spread is then already baked into both legs and the result reflects what really landed in your account.
On cost — the P&L is divided by buy rate × amount, the full value of the position at entry. If you traded on margin, the return on the capital you actually put up will be higher than this figure, in both directions.
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