Convert between 15 world currencies including IDR, USD, EUR, JPY, KRW, and more.
Displays forward and inverse rates, a quick conversion table for various amounts, and popular currency pairs. Exchange rates are estimates.
Disclaimer: Exchange rates shown are estimates and may differ from bank rates. Use official bank rates for actual transactions.
Calculator information
📋 How to use this calculator
- Choose the source currency (FROM) from the list of 15 world currencies.
- Choose the target currency (TO) for conversion.
- Enter the amount to convert.
- View the forward conversion (FROM → TO) and the inverse (TO → FROM).
- Compare with the quick reference table for amounts of 1, 10, 100, 1,000, and 10,000.
- Note: rates are reference estimates, not the buy/sell rates offered by banks or currency exchanges.
🧮 Currency Conversion
Target_amount = Source_amount × Rate(source→target); Rate(target→source) = 1 / Rate(source→target)
- Source_amount: the amount in the source currency
- Rate: value of 1 source unit in target currency
- Bank spread: gap between buy and sell rates (typically 1-3% for major pairs like USD/EUR)
- Reference rate: the Federal Reserve H.10 release publishes daily USD reference rates against major foreign currencies
Spot rates move continuously in the foreign exchange market; banks and currency exchanges offer a higher sell rate than buy rate to cover operating costs and risk.
💡 Worked example: Converting $500 USD to EUR (estimated rate)
Given:- Source currency: USD
- Target currency: EUR
- Amount: $500 USD
- Estimated rate: 1 USD = 0.92 EUR
Steps:- Forward: 500 × 0.92 = €460
- Inverse: 1 / 0.92 = 1.087 USD per 1 EUR
- For €1,000: 1,000 / 0.92 = $1,086.96
- Quick table: 1 USD = €0.92; 10 USD = €9.20; 100 USD = €92.00
Result: $500 USD equals €460 at a rate of 0.92 (before bank spread or transfer fees).
❓ Frequently asked questions
What is the difference between a bank's buy rate and sell rate?
The sell rate is the price the bank charges when selling foreign currency to you (when you want to buy euros). The buy rate is the price the bank pays when buying foreign currency from you (when you sell euros). The spread is the bank's margin, typically 1-3% for major pairs like USD/EUR and 2-5% for less liquid currencies.
What is the Federal Reserve H.10 reference rate?
The Federal Reserve H.10 release publishes daily noon buying rates for major foreign currencies certified by the Federal Reserve Bank of New York for customs and government use. It serves as an official reference for financial reporting, tax matters, and government transactions, but it is not the rate retail consumers receive at exchanges.
Why is the currency exchange rate different from Google's?
Google displays the interbank or mid-market rate used for large bank-to-bank transactions in volumes of millions of dollars. Banks, airport kiosks, and currency exchanges add a retail spread (typically 1-3% for major currencies, much more at airport counters). Compare several providers - online services like Wise typically beat physical exchanges by 2-4%.
Can currency exchange rates be predicted?
Short-term moves are very difficult to predict because they depend on Fed and foreign central bank interest rates, trade balances, global risk sentiment, commodity prices, and capital flows. For protection, exporters and importers use forward contracts or currency options. Multi-currency accounts (Wise, Revolut) offer a simple way to hedge upcoming foreign expenses.
What is a reasonable international transfer fee?
Wire transfers via traditional US banks typically cost $25-50 plus a 2-4% FX markup. Modern services like Wise, Revolut, OFX, and Remitly offer mid-market rates with transparent fees of 0.4-1%. For remittances, Western Union, MoneyGram, and Remitly remain common; for business, Wise Business and Payoneer offer competitive rates.
📚 Sources & references
Last updated: May 11, 2026