Currency Converter

Convert money using an exchange rate that you supply. Enter your own values below to see target currency amount and check the method behind it.

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Your inputs

Change the example values to match your situation.

Enter a current quote from your bank or exchange provider. No live exchange rate is assumed.

Your result

Let’s work it out.

Fill in your inputs and select Calculate.
Your result and breakdown will appear here.

How this calculator works

Converted amount = source amount × entered exchange rate × (1 − fee rate).

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What is Currency Converter?

Currency Converter helps you convert money using an exchange rate that you supply.

The main result is target currency amount, with a breakdown of before fees. The formula, example and assumptions below explain how to interpret it.

How to use Currency Converter

Use the example to get familiar with the form, then enter your own figures. Any rates in the example are illustrative. Check the field labels and units before calculating.

  1. Gather source currency amount, exchange rate: target currency per 1 source currency and conversion fee (%). Use values from the same situation or reporting period.
  2. Replace the example source currency amount with your own value, then complete the other fields. Check the displayed units.
  3. Select Calculate and read target currency amount with its result breakdown. Change one input and calculate again to compare a second scenario. Reset restores the original example.
  • Enter source currency amount, at least 0. Decimals are accepted.
  • Enter exchange rate: target currency per 1 source currency, at least 1e-9. Decimals are accepted. Enter a current quote from your bank or exchange provider. No live exchange rate is assumed.
  • Enter conversion fee in %, at least 0 and at most 100. Decimals are accepted.

Currency Converter: a worked example

With the inputs below, the result is 1,000 target units (target currency amount). Follow the example, then replace these illustrative values with your own.

Example inputs and output
Input or outputExample value
Source currency amount1,000
Exchange rate: target currency per 1 source currency1
Conversion fee (%)0 %
Target currency amount1,000 target units
Before fees1,000 target units

Understanding the Currency result

Read target currency amount alongside before fees. These describe different parts of the same calculation.

Displayed results use a readable number of decimal places. When checking a result by hand, keep extra precision until the last step. To compare scenarios, change one input at a time and keep the others fixed.

  • Example Before fees: 1,000 target units

Currency Converter: assumptions and common mistakes

A useful estimate starts with the right inputs. Check the following assumptions and limits before applying the result to your situation.

  • Select the correct unit system. US and imperial gallons differ, local land units vary, and exchange rates need a dated source.

For wider guidance, visit NIST measurement units. The formula and scope of this specific tool are stated on this page.

Currency Converter FAQs

What does Currency Converter calculate?

Currency Converter helps you convert money using an exchange rate that you supply. Its main output is target currency amount in target units.

What inputs do I need for Currency Converter?

You need source currency amount, exchange rate: target currency per 1 source currency and conversion fee (%). Use the field labels and units to match your figures to the formula.

Which formula does Currency Converter use?

Converted amount = source amount × entered exchange rate × (1 − fee rate).

What is a worked example for Currency Converter?

Example inputs: Source currency amount: 1,000; Exchange rate: target currency per 1 source currency: 1; Conversion fee: 0 %. The result is 1,000 target units (target currency amount).

How should I enter source currency amount?

Enter source currency amount, at least 0. Decimals are accepted.

How do I choose exchange rate: target currency per 1 source currency?

Enter exchange rate: target currency per 1 source currency, at least 1e-9. Decimals are accepted. Enter a current quote from your bank or exchange provider. No live exchange rate is assumed. The example uses 1; replace it if your circumstances differ.

How should I read target currency amount?

Read target currency amount alongside before fees. These describe different parts of the same calculation.

Why might my Currency Converter result differ from my records?

Select the correct unit system. US and imperial gallons differ, local land units vary, and exchange rates need a dated source. Differences in entered values, units or rounding can also change the comparison.

Can I compare two scenarios in Currency Converter?

Yes. Note your first target currency amount, change source currency amount or another input, and select Calculate again. Editing a field clears the old result so it is not mistaken for a new calculation.

Is Currency Converter free, and where are my inputs calculated?

This calculator is free to use without signing in. Its formula runs in your browser; calculator inputs are not sent to a calculation API. The inputs reset to the example values when you reset the form or start a fresh page.