What is the mid-market rate?

The mid-market rate (also called the interbank rate or real exchange rate) is the midpoint between the buy and sell rates on the global currency market. It is the rate banks use to trade with each other. Consumer-facing providers always quote a worse rate and keep the difference as profit.

What is a good exchange rate margin?

Online specialists like Wise typically charge 0.3–1%. High-street banks and airport bureaux often charge 2–8% or more. A margin below 1% is excellent; above 3% is expensive for large transfers.

How is the margin calculated?

Margin = ((Mid-market rate − Provider rate) / Mid-market rate) × 100 when you are selling the base currency (e.g. USD→EUR). For a buy direction, the formula inverts to (Provider rate − Mid-market rate) / Mid-market rate × 100.

What is the difference between margin and markup?

Margin is expressed as a percentage of the mid-market rate (the reference price). Markup is expressed as a percentage of the provider's own rate. For small percentages they are close, but margin is the standard metric used in forex pricing.

Does this tool require a live rate?

No. You manually enter both rates, which you can look up for free on XE.com, Google Finance, or Bloomberg. This keeps the tool fully client-side with no API keys or server calls required.

Can I use this for cryptocurrency exchanges?

Yes. Enter the spot (mid-market) price and the exchange's quoted price for a crypto pair. The margin calculation is identical.

Is a 20% margin the same as a 25% markup?

Yes — they describe the same gap from two reference points. A 20% margin (share of the selling price) equals a 25% markup (share of the cost). Forex pricing uses margin against the mid-market rate, so this tool reports margin, not markup.

Exchange Rate Margin Calculator

Name: Exchange Rate Margin Calculator
Availability: InStock
Author: Nham Vu

Enter the mid-market rate and the provider rate to instantly see the margin, markup percentage, and real cost of your currency exchange.

Rate Inputs

Currency Pair

Base (From)

Quote (To)

Mid-Market Rate (real rate from XE.com / Google)

Provider Rate (rate your bank / bureau offers)

Amount to Convert (optional)

How to read rates

If 1 USD = 0.9250 EUR (mid-market) but your bank gives 0.9065 EUR per USD, enter 0.9250 as mid-market and 0.9065 as provider rate. A lower provider rate means you receive fewer quote currency units — the difference is the bank's margin.

Enter both rates and click Calculate

Results will appear here

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Summary

Enter the mid-market rate and the provider rate to instantly see the margin, markup percentage, and real cost of your currency exchange.

How it works

Look up the current mid-market rate for your currency pair on XE.com or Google Finance.
Enter the mid-market rate into the "Mid-Market Rate" field.
Enter the rate your bank or exchange provider is offering.
Optionally enter the amount you plan to convert.
The calculator instantly shows the margin percentage, markup, and total cost in currency terms.

Use cases

Compare exchange rates from multiple banks before sending an international wire.
Evaluate travel money bureaus vs. online services like Wise or Revolut.
Audit your business foreign exchange provider for hidden spread costs.
Estimate how much you lose on a remittance transfer.
Check whether your credit card foreign transaction rate is competitive.
Teach personal finance students about hidden forex fees.

Frequently Asked Questions

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Last updated: 2026-05-23 · Reviewed by Nham Vu