Currency Exchange Calculator
Convert any amount between currencies using the exchange rate you enter, then subtract a fee or markup to see exactly how much money you will actually receive.
Updated 2026-06-14 · Free · No sign-up · Runs privately in your browser
Show the formula & steps
How the Currency Exchange Calculator Works
This calculator converts money from one currency to another and then shows the effect of a fee or markup, so you see what you will actually receive — not just the headline number. You enter three things: the amount to convert, the exchange rate (how many units of the target currency you get for one unit of the base), and the fee percentage your bank, card or exchange service charges. Because you supply the rate, the result is exact and works for any currency pair.
The Formula
Conversion is a multiplication, and the fee is a percentage deducted from the result:
Converted = amount × exchange rate Amount received = converted × (1 − fee %)
If there is no fee, set the fee field to 0 and the amount received equals the converted amount. To find a fixed-fee provider’s effective percentage, divide the flat fee by the converted amount.
Worked Example
Convert 1,000 base-currency units at a rate of 0.92, with a 2.5% provider markup:
- Converted at rate = 1,000 × 0.92 = 920.00 (target currency)
- Fee = 2.5% × 920 = 23.00
- You receive = 920 − 23 = 897.00
That 2.5% markup quietly costs you 23 units on this single transaction.
Reading an Exchange Quote
| Term | What it means |
|---|---|
| Mid-market rate | Fair midpoint rate banks trade at |
| Quoted rate | Mid-market rate plus the provider’s margin |
| Fee / markup | Percentage (or flat amount) the provider keeps |
| Amount received | What lands in your account after the fee |
Tips for Better Exchange Value
- Compare the all-in amount received, not the advertised rate, since a good rate with a high fee can be worse than a fair rate with no fee.
- Look up the mid-market rate on a finance site, enter it as the rate, and put the provider’s margin in the fee field to see the true cost.
- Beware “zero-fee” claims — providers often bake their margin into a worse rate instead of a separate fee.
- For large transfers, even a fraction of a percent matters, so shop around.
This tool does not fetch live rates; it uses the rate and fee you enter, so it stays accurate, private and usable for any currency pair.
Frequently asked questions
How do I calculate a currency conversion?+
Multiply the amount in your base currency by the exchange rate to get the target-currency value. For example, 1,000 base units at a rate of 0.92 converts to 1,000 × 0.92 = 920 units of the target currency before any fees.
What is the mid-market exchange rate?+
The mid-market (or interbank) rate is the midpoint between the buy and sell rates that banks trade at, and it is the fairest reference rate. Providers add a markup or fee on top of it, which is why you receive less than the mid-market amount. Enter the mid-market rate and the markup separately to see the gap.
How do exchange fees and markups affect what I receive?+
A fee or markup is usually a percentage of the converted amount. At a 2.5% fee on a 920-unit conversion, you lose 920 × 2.5% = 23 units and receive 897. Even small percentages add up on large transfers, so compare providers' total cost, not just the headline rate.
Why do banks and apps give different exchange rates?+
Each provider sets its own rate by taking the mid-market rate and adding a margin, plus sometimes a fixed fee. That margin is how they profit, so two providers can quote different rates for the same currencies at the same moment. Compare the all-in amount received.
Does this calculator use live exchange rates?+
No. You enter the rate yourself, which keeps the tool accurate and private and lets you model any rate — a bank quote, a card rate, or the mid-market rate from a finance site. Look up the current rate, type it in, and add the provider's fee to see your real proceeds.