How to convert currency when traveling

The “exchange rate” most travelers think they’re getting isn’t the one they actually get. Between airport kiosk markups, ATM fees, card foreign-transaction fees, and dynamic currency conversion tricks, the spread between the interbank rate and what hits your account can run 3-8% per transaction. Over a 2-week trip that’s hundreds of dollars. This guide walks through the rate types, the cheapest ways to get local currency, the traps at point of sale, and how to think about hedging for a major purchase abroad.

The three exchange rates you’ll encounter

Interbank / mid-market rate: the “real” rate. What banks use with each other, what Google and XE show. Never what you personally get.

Retail rate: interbank + a markup that the bank or exchange keeps. Typical retail markup: 0.5-3% for card networks (Visa/Mastercard), 3-6% for banks, 5-12% for airport kiosks and hotels.

Dynamic currency conversion (DCC) rate: when a foreign merchant offers to charge you in your home currency instead of theirs. Nearly always 3-8% worse than your card network’s native rate. Always decline.

Rule: compare any offered rate to the mid-market rate on Google, not to the rate of another retail service. “Only 2% worse than the bank” still means 2% more expensive than it should be.

Best-to-worst ways to get local currency

1. Local ATM with a fee-free debit card.Cards like Charles Schwab Investor Checking (US), Starling / Revolut / Wise (UK/EU), Chime refund ATM fees. You get the interbank rate with minimal markup. Typical total cost: 0.1-0.5%.

2. Credit card with no foreign transaction fee.Most travel cards (Chase Sapphire, Capital One Venture, etc.) give you the network rate with 0% FX fee. Typical cost: 0.5-1% above interbank.

3. Wise / Revolut / Currencies Direct multi-currency accounts. Hold balances in multiple currencies at near-mid-market rates. Good for recurring travelers or remote workers with foreign income.

4. Regular bank ATM abroad with a standard debit card. Typical cost: 2-4% FX markup + $3-5 ATM fee. Not terrible for occasional use.

5. Local bank exchange (walk-in). Variable rates; usually 1.5-3% above interbank. OK for small amounts.

6. Exchange bureaus in tourist areas. Usually 3-6% above interbank. Avoid unless no alternative.

7. Airport currency exchange. 8-12% above interbank. Avoid except for $50-100 of “arrival money” if no other option.

8. Hotel front desk exchange. Often 10-15% above interbank. Emergency only.

DCC — the trap at the terminal

At restaurants, shops, and hotels abroad, the card terminal may ask: “Would you like to pay in USD (your home currency) or EUR (local)?” This is DCC.

The USD option applies a rate set by the merchant or their processor — nearly always 3-8% worse than your card network’s rate. You see the USD number on the receipt and think you got clarity; what you got was a markup.

Always choose the local currency. Your card network converts at its own (much better) rate, and you see the home-currency number on your statement anyway.

DCC is sometimes presented as a “service” or “convenience.” It is, in fact, a hidden markup.

Card fees you should know

Foreign transaction fee: a percentage (typically 1-3%) your bank adds on top of the network rate for any transaction in a foreign currency. Travel cards waive this.

Cash advance fee: using a credit card for an ATM withdrawal abroad incurs a cash advance (3-5% + interest from day 1). Use debit for ATMs, credit for purchases.

ATM operator fee: the foreign ATM’s own fee, independent of your card. $2-5 typical. Some cards (like Schwab’s) refund these.

Network fee: Visa and Mastercard add a small fee (0.2-1%) even on “no FX fee” cards. Built into the rate; unavoidable.

Cash vs card strategy

Cash still matters in: rural areas, small markets, tipping, taxi drivers, some European countries (Germany is surprisingly cash-heavy), emergencies.

Card is better for: large purchases (better rate, fraud protection, built-in travel insurance on many cards), restaurants, hotels, transport, online bookings.

Rough allocation: carry 10-20% of daily budget in cash; use card for everything else. Withdraw larger ATM amounts (fewer fee events) but don’t carry huge cash balances.

Before the trip — preparation checklist

Notify your bank and card issuers of travel dates and countries. Reduces fraud blocks on first transaction. Many banks now auto-detect travel and this is less critical.

Get a no-FX-fee card at least a month ahead if you don’t have one.

Know your ATM PIN as digits. Many foreign ATMs are numeric-only; letter-to-number conversion doesn’t work.

Check for chip-and-PIN compatibility. Most modern cards work; some still default to signature, which doesn’t work at automated European train stations and toll booths.

Carry a backup card from a different network. If the primary is lost, frozen, or blocked, the trip doesn’t end.

Hedging for large purchases abroad

Buying something expensive in a foreign currency (car, property, tuition, wedding venue): exchange-rate moves between agreement and payment can cost thousands.

Option 1: lock in with a forward contract.Services like Wise, Currencies Direct, OFX offer forward rates — agree today, settle in 30/60/90 days. Eliminates FX risk.

Option 2: buy the currency early. Convert when rate is favorable, park in a multi-currency account. Trade-off: opportunity cost on the cash balance.

Option 3: accept the risk. For <$10k purchases, hedging complexity often isn’t worth it.

Check the 5-year range of the currency pair — if you’re at a favorable point (e.g., strong home currency), lock in.

Mental math for quick conversions

Memorize one anchor. EUR ≈ USD × 1.1 (varies). GBP ≈ USD × 1.25. JPY: rough USD × 150. Then round for mental math.

For 20 EUR, quick conversion: 20 × 1.1 = 22. That’s USD.

For a €65 dinner: 65 × 1.1 ≈ 72 USD.

Good enough for menus and street pricing. Pull up the exact rate for big purchases.

Run the numbers

Get live cross-currency rates with the currency converter. Pair with the budget calculator to plan a trip budget in home currency, and the tip calculator for the local-custom tip math after you’ve converted.