Currency Converter
Convert between world currencies with up-to-date rates, swap and search across 150+ currencies.
What Is the Currency Converter?
A currency converter translates money between currencies using exchange rates, so you know what your dollars, euros, or yen are actually worth before you spend, send, or invoice. Converting is a simple multiplication: pick an exchange rate, multiply your amount, and read the result. Enter an amount, choose two currencies, and the result appears instantly using rates fetched from ExchangeRate-API, which refresh about once a day. This tool also lets you swap currencies or pick from 150+ currencies, not just the majors. Rates move continuously during trading hours, which matters for large transfers and business invoicing far more than for vacation spending. Travelers use converters to sanity check card statements abroad, online shoppers use them to judge whether an international price is fair, and freelancers use them to quote clients across borders. Understanding the midmarket rate also helps you recognize how much margin banks and card networks add in practice.
Key Statistics
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$7.5 trillion daily
Global foreign exchange trading volume
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88%
Share of forex trades involving the US dollar on one side
Source: BIS Triennial Survey
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About 23%
Share of global volume traded in EUR/USD, the most traded pair
Source: BIS Triennial Survey
The Formula
How to convert currency: Converted Amount = Original Amount x Exchange Rate. To reverse it, divide by the same rate.
Worked Examples
How to convert 500 USD to EUR: multiply 500 by 0.92 to get 460 EUR. A British traveler converting 1,000 GBP to USD at 1.27 receives $1,270, and to go back they would divide 1,270 by 1.27. For international wire transfers, 10,000 USD to JPY at 149.50 yields 1,495,000 Japanese yen.
Converting USD to EUR
- Take an amount of 500 USD
- Multiply by the EUR per USD rate of 0.92
- The product is your euro amount before card fees
500 USD converts to 460 EUR. To reverse, divide 460 by 0.92 to get back to 500.
Vacation budget in euros
- You have $750 and the EUR/USD rate implies 0.91 euros per dollar
- Multiply 750 by 0.91
- The product is your euro buying power before card fees
$750 converts to about 682.50 euros.
Quoting a client in yen
- You want the equivalent of 150,000 yen at 0.0067 dollars per yen
- Multiply 150,000 by 0.0067 for about $1,005
- Divide back by 0.0067 to verify the round trip returns the original amount
The invoice equals about $1,005 and the reverse check confirms the math.
Real World Use Cases
Travel planning
Build a realistic daily budget by converting hotel, meal, and transit costs into your home currency.
Checking card statement charges
Compare the converted amount on a statement against the midmarket rate to see the markup you were charged.
International freelancing
Quote projects in the client currency and confirm what actually arrives after conversion.
Online shopping abroad
Judge whether a foreign webshop price beats the domestic alternative once converted.
Expert Tips
- ✓ Card networks typically land within about 1 percent of the midmarket rate while airport exchanges can exceed 6 percent, so prefer cards for travel spending.
- ✓ Always choose to be charged in the local currency at terminals offering dynamic conversion because their rates are worse.
- ✓ Rates move continuously on weekdays, so for large transfers consider converting in portions across days.
- ✓ Weekend rates embed a risk premium because major markets are closed until Monday.
- ✓ Compare the total received rather than just the headline rate, since zero commission services can hide margin inside the rate itself.
Frequently Asked Questions
How do I convert currency? ▼
Multiply your amount by the exchange rate expressed as the target currency per one unit of the source. To convert 500 USD to EUR at 0.92, multiply 500 by 0.92 to get 460 EUR. To reverse it, divide by the same rate.
How is currency conversion calculated? ▼
The simplified formula is converted amount equals the original amount times the exchange rate. Banks add a markup on top of that base rate, so the total you pay is usually higher than a plain multiplication.
What is the interbank rate? ▼
The interbank rate is the midpoint between what buyers and sellers pay in the global currency market. It is the fairest benchmark and the rate you see on Google and most converter tools before fees are added.
Why do banks charge more than the Google rate? ▼
Banks and exchanges add a markup (spread) on top of the interbank rate and often charge a flat fee or a percentage. The difference covers their costs and profit. Always check the final amount, not just the headline rate.
What exchange rate should I use? ▼
Use the interbank rate to compare offers fairly, then add in any fees to find the real cost. The cheapest option is not always the one with the best advertised rate once transfer fees are counted.
How current are the exchange rates? ▼
The converter pulls rates from ExchangeRate-API and shows when they were last updated. Those rates refresh roughly once a day, so they are great for planning but you should confirm a live rate with your bank or provider before a real transaction.
Do I pay fees to convert currency? ▼
Most banks and money transfer services add a margin of 1% to 3% plus possible fixed fees. Credit cards and ATMs often add foreign transaction fees. Check the full cost before converting large amounts.
Why is the converted amount different from what my bank charged? ▼
Consumer providers add a spread or margin on top of the midmarket rate, commonly between 1 and 3 percent and sometimes far more.
Common Mistakes to Avoid
- ⚠ Assuming the interbank rate shown here is the rate you will actually get. Banks, airport kiosks, and transfer services add a 1-5% markup on top. If the interbank rate is 0.92 USD per EUR, you might only get 0.89 after fees, losing $30 on a $1,000 conversion.
- ⚠ Forgetting about foreign transaction fees on credit cards and ATMs. Many cards charge 3% per transaction plus a flat fee. On a $2,000 hotel stay in Europe, that is $60 in fees you may not see until your statement arrives.
- ⚠ Not checking whether the rate locks at the time of transaction or fluctuates until settlement. Currency markets move constantly. A rate that looks good at 9 AM might be worse by the time your transfer processes, changing the final amount by 1-2%.
- ⚠ Treating yesterday's rate as exact. Rates shift constantly, so treat converter output as a close estimate rather than a guaranteed settlement price.
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Last updated: · by CalculatorPro Tools