currency5 min
Currency Rates, Spreads, and Limits
Use reference rates correctly, understand provider spreads, and learn exactly where ToolsFree obtains its daily currency data.
Read more→Currency Converter
Convert 39 fiat currencies with dated daily reference rates. This free online currency converter requires no account and shows the dataset date.
Processing: uses an external service
Free Online Currency Converter
The converter contains 39 selectable fiat currencies, from USD, EUR, and GBP to MXN, BRL, and COP. The interface displays the exact dataset date used for each result.
Data comes from the open-source fawazahmed0/exchange-api project through our proxy. These are informational reference rates, not buy or sell quotes, and they exclude your provider's spread and fees.
Most popular currency pairs
USD to EUR, EUR to USD, GBP to USD, USD to MXN, EUR to GBP, USD to JPY, USD to CAD, EUR to CHF, AUD to USD, USD to BRL.
How to Use Our Currency Converter
Using our free online currency converter is straightforward. First, select your source currency from the left dropdown menu - for example, US Dollar (USD). Then, choose your target currency from the right dropdown, such as Euro (EUR) or Mexican Peso (MXN). Enter the amount you want to convert, and the result appears instantly. You can also swap currencies with a single click to perform the reverse conversion. The quick reference table displays common conversion amounts for the selected pair, which is especially helpful when you need to check multiple values at once for travel budgets or freelance invoicing.
Exchange Rate Sources
The application tries a primary source and a replica of the same project when the first does not respond. The browser keeps a response for 30 minutes and the proxy may cache it for one hour. Check the displayed date and obtain a quote from your provider before making a transaction.
Tips for International Money Transfers
Compare the final amount the recipient receives rather than an advertised fee alone. Effective cost combines the applied rate, spread, fixed fees, and any intermediary-bank charges.
The guide to converting currencies and comparing offers uses a worked example to separate the reference rate, spread, and fees.
Why Exchange Rates Fluctuate
A currency's price changes constantly because it responds to supply and demand in international markets. Central-bank interest rates, inflation, political stability, a country's trade balance, and investor expectations all play a part. That is why the same pair can move several times in a single day. The rates shown here are daily reference values: they help you get oriented, but the exact value of a transaction depends on the moment and on the provider that executes it.
Exchanging Currency While Traveling
When paying abroad, always choose to be charged in the local currency rather than your own: the dynamic currency conversion (DCC) offered by some card terminals and ATMs usually applies a worse rate. Comparing the amount against a reference rate like the one here helps you spot excessive fees. Paying with a no-foreign-fee card or withdrawing cash from a local bank's ATM network usually beats exchanging money at the airport, where the margin is highest.
A worked example
What this tool did when we measured it
Two things showed up in a single sitting that have nothing to do with the rates being stale. On the 28 August 2026 data, this page prints 1 EUR = 1.16460 USD and 1 USD = 0.85867 EUR — multiply those and you get 1.000007082, about 7 parts per million, because five decimals cannot represent both directions of one rate exactly. And routing EUR → USD → GBP against EUR → GBP, looked up in the same sitting, does not agree with going direct: 0.0589% apart — 5.05 GBP on 10,000 EUR, with no fee and no spread in sight. Which route sits closer to the market this measurement cannot say; what it does say is that the two cannot both be right.
Measured on with Chromium 151.0.7922.173. How we measured it
Frequently Asked Questions
- How often are exchange rates updated?
- The upstream API publishes daily data. The exact dataset date used is shown beside each result.
- Is the currency converter free?
- Yes. It needs no account and converts between the 39 fiat currencies included in the selector.
- Can I convert cryptocurrencies?
- No. The current selector contains fiat currencies only; we do not promise a date for broader coverage.
- Are these transaction rates?
- No. They are informational reference rates from the open-source fawazahmed0/exchange-api project. Your bank or transfer provider applies its own rate, spread, and fees.
Related Articles
Learn more with related in-depth guides and tutorials.
units10 min
Unit Conversion: SI and Precision
A worked guide to unit factors, temperature offsets, significant digits, and the difference between decimal and binary data units.
Read more→JSON10 min
JSON Format: Syntax, Errors, and Safe Use
Learn JSON's actual grammar, diagnose common parser failures, and format or inspect data locally without confusing syntax validation with schema validation.
Read more→