Question 1

What is the most accurate currency converter?

Accepted Answer

XE and OANDA are the long-standing references for accurate mid-market rates and historical data. Google Finance is fine for a quick check. Wise shows the mid-market rate alongside its actual fee, which is the number that matters if you are transferring money rather than just looking. For developers, exchangerate-api and Open Exchange Rates provide reliable feeds.

Question 2

Why is the rate I get worse than the rate I looked up?

Accepted Answer

Because the rate you looked up is the mid-market rate - the midpoint between buy and sell prices, which is what banks trade at and no retail customer receives. Your provider adds a margin (the spread) on top, often 2 to 5 percent, and it is frequently presented as a zero-fee transfer. The spread is the fee. Always compare the total amount that actually lands, not the advertised rate.

Question 3

What is the cheapest way to convert currency?

Accepted Answer

For transfers, specialist providers like Wise and Revolut consistently beat traditional banks, usually by charging the mid-market rate plus a small explicit fee rather than hiding the cost in the spread. For spending abroad, a card with no foreign transaction fee that converts at the network rate beats airport bureaux and dynamic currency conversion - always decline the offer to be charged in your home currency.

Best Currency Converter 2026

Best Currency Converter 2026 - Frequently Asked Questions