Currency Converter

Why the rate is in your hands

Exchange rates move every second and no free, fixed, published number can be trusted to match what your bank finally charges. This converter therefore treats the rate as an input: you take the quote from the source you trust — your bank's app, a card's conversion preview, a financial data page — and see the arithmetic cleanly, with no hidden spread pretending to be maths. That makes it the right tool for checking a foreign invoice, budgeting a trip at a cautious rate, and reproducing exactly the conversion a counterparty performed.

What it cannot do: predict tomorrow's rate, include card fees (add them as a percentage on a second pass), or choose which side of a two-way quote to enter. Direction is the whole mistake-maker here — "0.92" as EUR per USD is not the same operation as "1.087" USD per EUR, and reading the rate backwards multiplies instead of dividing.

A worked example, step by step

Problem: you bring 240 EUR on holiday and see a rate of 1.0950 USD per EUR; your card also charges a 2.5% conversion fee.

1. Rate orientation: 1.0950 USD are received per 1 EUR, so multiply.
2. Convert: 240 × 1.0950 = 262.80 USD.
3. Apply the fee: 262.80 − 2.5% = 262.80 × 0.975 = 256.23 USD.
4. Effective rate: 256.23 ÷ 240 = 1.0676 USD per EUR — your true deal, below the headline 1.0950.

That last line is the whole lesson: fees and spreads make the real rate slightly worse than the quoted one, so a budget built on the quoted rate alone always lands optimistic.

Conversions across sample rates

Three illustrative rate levels and what each does to an amount:

The rates here are inventions for orientation. Real rates come from your bank, card, cash exchange or a market data page, entered into the tool as you see them.

Mistakes that cost real money

• Inverting the rate. If your result looks 15% off in the wrong direction, this is almost always the cause — check the "per 1 source unit" hint under the field.
• Accepting dynamic currency conversion. Terminal offers to "pay in your home currency" usually embed a poor rate; choosing the local currency and letting your bank convert is typically cheaper.
• Budgeting with today's rate for a future trip. Rates drift; add a buffer or compute several scenarios.
• Comparing rates at different timestamps. A comparison must quote its moment, or it is not a comparison.
• Forgetting the two-way spread. Buy and sell rates differ by a margin; the middle rate exists for reference, not spending.

Keep exploring

• Fuel Cost Calculator — plan trip budgets including fuel.
• Electricity Cost Calculator — costs that also vary by country and unit price.
• Unit Price Comparison — compare shopping between two currencies honestly.