Compare a bank or exchange rate against the market rate to reveal the markup.
The difference between the offered and interbank rates hides a hidden commission that you are effectively paying on every unit. Adding any flat fee captures the full, often larger, total cost. Providers quote attractive-looking rates while embedding the real cost in the spread, so comparing against the market rate exposes what you actually lose.
Currency Markup Check
Markup = (market - offered)/market; loss = value lost + flat fee
Markup = (market - offered)/market; loss = value lost + flat fee The difference between the offered and interbank rates hides a hidden commission that you are effectively paying on every unit. Adding any flat fee captures the full, often larger, total cost.
Providers quote attractive-looking rates while embedding the real cost in the spread, so comparing against the market rate exposes what you actually lose.
This calculator takes 4 inputs: Amount to convert, Rate you are offered, Market rate, Flat fee. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.