Currency Exchange Fee Calculator
The real rate after spreads and card fees.
Enter your values
Enter the amount to exchange in $.
Enter the mid-market rate you are working with.
Enter the rate you are offered you are working with.
Enter the flat fee in $.
Enter the percentage fee in %.
Results update instantly as you type — no submit needed. Your values are remembered on this device, and the shareable link reopens the calculator with exactly these numbers.
- You receive
- 867.3
- Total cost of exchanging
- $57.28 (5.73%)
- Effective rate
- 0.8673
- Spread vs mid-market
- 3.8%
- Fees paid
- $20.00
- At mid-market you would get
- 920
Quick answer
The true cost of an exchange is the spread from the mid-market rate plus any flat and percentage fees — often 3–7% at airport bureaux.
Effective rate = amount received ÷ amount paid
At a glance
| What it does | The real rate after spreads and card fees. |
|---|---|
| Category | Travel |
| Inputs needed | Amount to exchange, Mid-market rate, Rate you are offered, Flat fee, Percentage fee |
| Main output | You receive |
| Formula | Effective rate = amount received ÷ amount paid |
| Cost | Free — no sign-up, no download |
How to use the Currency Exchange Fee Calculator
- 1Look up the mid-market rate on a rate site — it is the true midpoint.
- 2Enter the rate the bank or bureau is quoting you.
- 3Add any flat and percentage fees they charge.
Inputs explained
- Amount to exchange($)
- Enter the amount to exchange in $.
- Mid-market rate
- Enter the mid-market rate you are working with.
- Rate you are offered
- Enter the rate you are offered you are working with.
- Flat fee($)
- Enter the flat fee in $.
- Percentage fee(%)
- Enter the percentage fee in %.
Worked example
Using the values the calculator loads with:
Inputs
- Amount to exchange1000 $
- Mid-market rate0.92
- Rate you are offered0.885
- Flat fee5 $
- Percentage fee1.5 %
Results
- You receive867.3
- Total cost of exchanging$57.28 (5.73%)
- Effective rate0.8673
- Spread vs mid-market3.8%
- Fees paid$20.00
- At mid-market you would get920
Frequently asked questions
Should I accept the card's local currency conversion?
No. Always pay in the local currency and let your bank convert — dynamic currency conversion at the terminal typically adds 3–6%.
Where is exchange cheapest?
Fee-free travel cards and ATMs on the local network are usually within 0.5% of mid-market; airport bureaux are the most expensive by a wide margin.
What do I need to enter into the Currency Exchange Fee Calculator?
Just 5 values: amount to exchange, mid-market rate, rate you are offered, flat fee, percentage fee. Every field starts with a realistic example, so you can change one number at a time and watch the result update instantly.
How does the Currency Exchange Fee Calculator work out the answer?
The true cost of an exchange is the spread from the mid-market rate plus any flat and percentage fees — often 3–7% at airport bureaux. It applies the formula Effective rate = amount received ÷ amount paid and shows the working so you can check each step by hand.
Is the Currency Exchange Fee Calculator free, and do I need an account?
It is completely free with no sign-up, no download and no usage limit. Everything is calculated in your browser, so the numbers you type never leave your device.
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.