Currency conversion fee calculator
A transfer can advertise a small fee and still cost a lot. The exchange rate is where most of the cost often hides.
On this page
- A conversion costs you the fixed fee plus the gap between the provider's rate and the mid-market rate.
- With the defaults, sending 1,000 at 0.89 instead of 0.92 with a 5 fee delivers 885.55 instead of 920.00 — a 3.74% total cost.
- Compare providers by the amount the recipient gets, not by the headline fee.
- The World Bank put the global average cost of sending $200 at 6.36% in Q3 2025.
A currency conversion costs two things: any fixed fee and the gap between your provider's rate and the mid-market rate. With the defaults — 1,000 sent, mid-market rate 0.92, provider rate 0.89, fee 5 — you receive 885.55 instead of 920.00, a 3.74% total cost.
How do you use the currency conversion fee calculator?
Amount you send. In the currency you start with.
Mid-market rate. How many units of the target currency one unit of yours is worth, halfway between the market's buying and selling prices. Look it up at the same moment as the quote; the site does not fetch live rates.
Rate the provider gives you. From the provider's quote or receipt.
Fixed fee. Any flat charge, in the currency you send. The tool assumes it is taken before conversion.
You get the amount received, what you would receive at the mid-market rate with no fee, the total cost in the target currency, that cost as a percentage, and the exchange-rate markup on its own.
How is it calculated?
With amount A, mid-market rate M, provider rate R and fixed fee F:
At mid-market = A × MYou receive = (A − F) × RTotal cost = A × M − (A − F) × RCost as % = Total cost ÷ (A × M)Rate markup = 1 − R ÷ M
The total cost always splits into two parts: the markup on the money actually converted, (A − F) × (M − R), plus the fee valued at the mid-market rate, F × M.
Worked example: where do the 34.45 go?
In this example the advertised fee is less than a seventh of the true cost. Most of it sits in the rate.
Which costs more: a high fee or a poor rate?
Mid-market rate 0.92 in every row; amounts in the target currency.
| Scenario | You receive | Total cost |
|---|---|---|
| Provider A: rate 0.89, fee 5, send 1,000 (defaults) | 885.55 | 34.45 (3.74%) |
| Provider B: rate 0.915, fee 15, send 1,000 | 901.28 | 18.72 (2.04%) |
| Rate at mid-market, fee 5, send 1,000 | 915.40 | 4.60 (0.50%) |
| Rate 0.89, no fee, send 1,000 | 890.00 | 30.00 (3.26%) |
| Provider A, send 200 | 173.55 | 10.45 (5.68%) |
| Provider A, send 5,000 | 4,445.55 | 154.45 (3.36%) |
Provider B charges three times the fee yet delivers more money. A 'no fee' offer can still cost 3.26%. And a fixed fee weighs more on small transfers.
For scale, the World Bank's Remittance Prices Worldwide report put the global average cost of sending $200 at 6.36% in Q3 2025, with digital services averaging 4.59% against 7.30% for non-digital ones, and banks the costliest type of provider. The UN's Sustainable Development Goal 10.c aims to cut remittance costs below 3% by 2030.
What does this calculator not tell you?
- Fees you cannot see. Charges taken by an intermediary or the receiving bank, and taxes, are not included unless you add them to the fixed fee.
- Rate movements. The mid-market rate changes through the day. Compare a quote with the mid-market rate at the same time.
- Speed and safety. The cheapest option may be slower or less protected. Confirm the provider is licensed using how to check if a platform is registered.
What mistakes do people make when comparing transfer costs?
- Comparing fees only. Compare the amount received for the same amount sent.
- Ignoring the rate on card payments abroad. Check which exchange rate is applied to a purchase in another currency, not just the card fee; see how card payments work.
- Assuming new payment rails are always cheaper. Check the full cost, including any conversion back to local currency, before using options such as stablecoins for cross-border payments.
Questions readers ask
What is the mid-market rate?
The midpoint between the prices at which the market buys and sells a currency at a given moment. It is the benchmark for measuring how much a provider marks up its rate.
How do I find the rate my provider used?
Divide the amount received by the amount actually converted. If 995 became 885.55, the rate was 885.55 ÷ 995 = 0.89.
Why does a 'zero fee' transfer still cost money?
Because the cost can sit in the exchange rate. In the table above, a rate of 0.89 against 0.92 costs 3.26% with no fee at all.
Does the currency symbol matter?
No. The calculator works in any pair of currencies as long as both rates are quoted the same way — units of target currency per one unit of the currency you send.
The true price of a currency conversion is the gap between what the recipient gets and what the mid-market rate would have delivered. Fees are only part of it. Put every quote through the same calculation and compare the amount received.
Sources
- World Bank, Remittance Prices Worldwide, Issue 54 (Q3 2025) (2025)Primary source
- United Nations, Goal 10: Reduce inequality within and among countries (target 10.c) (2015)Primary source
- US Securities and Exchange Commission, Investor Bulletin: Foreign Currency Exchange (Forex) Trading for Individual Investors (2011)Primary source
Educational content only — not financial, investment, legal or tax advice. Crypto-assets are high-risk and you could lose all the money you put in. Rules differ by country; check with your national regulator. See our risk disclosure and editorial policy.
Read next
- Stablecoins & Payments · Beginner
Stablecoins and cross-border payments
The on-ramp, the chain and the off-ramp: where costs and risks sit when money crosses borders as tokens.
- Glossary · Definition · Beginner
Bid-ask spread
The gap between buy and sell prices, and how to turn it into a cost you can compare.
- Fintech · Beginner
How do card payments work?
Issuer, acquirer and network explained, plus who pays interchange and how disputes work.
- Tools · Calculator · Beginner
Crypto profit calculator (with fees)
Profit or loss after buy and sell fees, plus the break-even sell price.
