Mathematics

Currency Converter

Indicative rates — for live rates use a forex service.

Amount

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What is Currency Converter?

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A currency converter translates an amount from one currency to another using the exchange rate between them. Exchange rates fluctuate continuously based on supply, demand, inflation, and central bank policy.

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How to Currency Converter

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1Enter the amount and select source and target currencies
2Apply live or manual exchange rate: converted = amount × rate
3Result shows converted amount in target currency

Worked Examples

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Example 1

Given:$100 USD at EUR/USD = 0.92

Result:€92.00

100 × 0.92

Example 2

Given:£50 GBP at USD/GBP = 1.27

Result:$63.50

50 × 1.27

Special Cases

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Bid/Ask spread

Banks and exchanges charge a spread between the buying and selling rate. When you exchange cash at an airport, you pay a large spread (up to 5%). Online services like Wise charge much less.

Cross rates

To convert between two non-USD pairs (e.g. EUR to JPY), multiply the EUR/USD rate by the USD/JPY rate.

Major Currency Codes

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Code	Currency	Country/Region
USD	US Dollar	United States
EUR	Euro	Eurozone (20 countries)
GBP	Pound Sterling	United Kingdom
JPY	Japanese Yen	Japan
CNY	Chinese Yuan	China
CHF	Swiss Franc	Switzerland
CAD	Canadian Dollar	Canada
AUD	Australian Dollar	Australia
SEK	Swedish Krona	Sweden
INR	Indian Rupee	India

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Pro Tip

For the best exchange rates: use a credit card with no foreign transaction fees, or a service like Wise/Revolut. Avoid airport and hotel exchanges.

References

›Exchange rate — Wikipedia

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How to Calculate Currency Exchange Rates: Formula and Travel Tips

6 min read

Mathematically verified

Reviewed October 2026

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Currency Converter