Currency Converter & International Travel Money Guide

On the main screen, pick a base currency (e.g. KRW) and target currencies (e.g. USD, JPY). Conversions happen instantly using real-time rates updated every hour from ExchangeRate-API. You can compare up to five currencies side-by-side.

The keypad supports basic arithmetic. For example, if a hotel rate in Japan shows ¥12,800, type that directly to see the equivalent in your home currency.

The two biggest factors in foreign exchange are timing and method. Airport exchange counters offer the worst rates; the best deals usually come from online bank transfers, prepaid travel cards, or local ATMs in major cities.

• Online bank exchange: Order through your banking app, pick up at airport/branch. Best preferential rates.
• Travel cards: Wise, Revolut, Travel Wallet, etc. — low fees, automatic conversion at purchase.
• Local ATMs: Worth it for longer stays; not great for short trips due to fees.
• City exchange offices: In Bangkok, Ho Chi Minh, etc., downtown exchange shops often beat airport rates significantly.

Use rate alerts to get notified when your target rate is reached — this can save up to 5% on short-term volatility.

• USD (US Dollar): World reserve currency. Accepted as secondary payment in many Southeast Asian and Latin American countries. $100 bills face strict counterfeit checks; carry crisp newer notes.
• JPY (Japanese Yen): Treated as a safe-haven currency, but with notable volatility. Japan still relies heavily on cash (rural ryokans, small restaurants), so exchange enough physical yen.
• EUR (Euro): Shared by 20 eurozone countries. Western Europe is card-friendly, but rural Eastern Europe and southern Italy still favor cash.
• CNY (Chinese Yuan): Used in mainland China. Alipay/WeChat Pay dominate; foreign tourists can now register too.
• GBP (British Pound): UK only. Scottish-issued notes are valid in Scotland but sometimes refused in England.

Q. How accurate are the rates?

Rates are mid-market rates updated hourly. Actual exchange rates at banks or card networks may differ by ±1–3%.

Q. Does it work offline?

The last fetched rates are cached, so you can still convert on a plane or in remote areas. New rates sync automatically when you reconnect.

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Q. Where is my data stored?

All user data — trips, expenses, rate alerts — stays only on your device and is never sent to remote servers. See the Privacy Policy for details.