The ATM line at Bangkok's Suvarnabhumi Airport stretches forty people deep at 11 PM. You've just landed after twenty hours in the air and all you need is cab fare to your hotel. How much baht should you pull out — and should you have brought cash from home instead?

Getting this wrong costs real money. Either you're paying 3–5% currency conversion fees every time you swipe a card, or you're sitting on $400 in leftover yen at the end of your trip with no good way to convert it back. The right answer depends on your destination, your trip length, and how you like to spend.

Here's a framework that actually works.

The Core Rule: Cash Is a Backup, Cards Are the Default

In 2025, a travel credit card with no foreign transaction fees should handle the majority of your spending in most countries. Cards offer better exchange rates than airport kiosks, protect you from fraud, and leave a paper trail.

Cash serves three specific roles:

Arrival float — Getting from the airport to your accommodation before you find an ATM
Cash-only markets — Street food stalls, small guesthouses, rural vendors, tipping
Emergency buffer — When cards don't work or ATMs are down

Once you accept that cash is a supplement — not your primary payment method — the math gets much simpler.

How Much to Bring by Region

These estimates assume a 7–10 day trip for one person, mixing mid-range hotels with local dining.

Region	Recommended Cash	ATM Availability	Card Acceptance
Western Europe	$150–$200 USD equivalent	Excellent	Very high
Southeast Asia	$300–$400 USD equivalent	Good in cities, patchy in rural	Low for small vendors
Japan	$400–$600 USD equivalent	Good (7-Eleven, Japan Post)	Still heavily cash-based
Latin America	$200–$350 USD equivalent	Moderate	Mixed
Eastern Europe	$200–$300 USD equivalent	Good	Moderate
South Asia (India, Nepal)	$300–$500 USD equivalent	Variable	Low outside cities
Middle East	$200–$300 USD equivalent	Good in major cities	Moderate
Sub-Saharan Africa	$400–$600 USD equivalent	Unreliable	Very low

Japan is the biggest outlier. Despite being a highly developed country, Japan remains extraordinarily cash-dependent. Many restaurants, temples, and ryokans are cash-only. Budget on the higher end, and exchange money before you land — rates at Japanese airport exchange counters are often better than your home-country bank.

The Formula: Calculate Your Daily Cash Spend

Rather than guessing, work backward from your actual budget.

Step 1 — Estimate your daily spend:

Accommodation: Are you paying by card? (Usually yes.) Subtract it.
Food: What percentage will be street food / local spots? (Often 50–80% in Asia, 20–30% in Europe)
Transport: Taxis, tuk-tuks, local trains vs. Uber/Bolt?
Activities: Many museums and tours take cards. Markets, guides, and tips don't.

Step 2 — Calculate cash-only portion:

If you're spending $80/day total and 40% will be cash, that's $32/day in cash.

Step 3 — Add an arrival buffer:

Your first 12–24 hours often require more cash than usual (airport transport, tips, first meal before you find an ATM). Add $50–100 to your total.

Step 4 — Multiply and add 20%:

(Daily cash spend × trip days + arrival buffer) × 1.2

The 20% buffer handles the unexpected: a broken ATM, a cash-only experience you didn't plan for, a night where your card inexplicably gets declined.

Should You Exchange Cash Before You Leave?

For most major destinations: yes, bring a small amount of local currency from home.

Why: You want enough to cover your airport-to-hotel transfer and the first few hours without hunting for an ATM. $50–100 worth of local currency is usually enough.

Where to exchange: Your bank or credit union will almost always offer better rates than airport kiosks. Order it a few days ahead. Avoid exchange bureaus at airports and tourist areas — they often post favorable "buy" rates in large numbers while hiding the actual spread in small print.

Currencies where you shouldn't pre-exchange:

Indian Rupees (restricted currency — better rates in-country)
Indonesian Rupiah (very hard to get outside Indonesia at good rates)
Vietnamese Dong (same issue)
Any currency your bank doesn't stock

For those destinations, use a no-fee ATM card (more on that below) upon arrival.

ATMs Abroad: Do This Right

Use bank ATMs, not standalone machines. Random ATMs in airports, bars, and tourist zones charge 5–8% in fees. Citibank, HSBC, and major local banks are your friends.

Decline dynamic currency conversion (DCC). When an ATM or card terminal asks whether you want to pay in your home currency or the local currency, always choose local currency. DCC is a scam — you'll get a terrible exchange rate set by the processor, not the market.

Withdraw larger amounts less frequently. If your bank charges a flat fee per ATM withdrawal (many do), it's cheaper to pull out $200–300 at once than $50 four times.

The best cards for ATM withdrawals abroad:

Charles Schwab Investor Checking — Reimburses all ATM fees worldwide, no foreign transaction fee
Fidelity Cash Management — Same deal
Wise Debit Card — Mid-market exchange rate, small conversion fee, good for multiple currencies

What About Currency Apps and Prepaid Cards?

Wise (formerly TransferWise) is excellent for holding multiple currencies and spending at the mid-market rate. Load it before you go, use it like a debit card.

Revolut offers similar features with a free tier that includes some fee-free foreign exchange each month.

Both are great supplements, but neither replaces a travel credit card with no foreign transaction fee for large purchases (hotels, flights, tours) — cards offer better purchase protections.

Country-Specific Tips

Thailand

ATMs are everywhere but charge 220 THB ($6) per foreign withdrawal on top of your bank's fee. Use a Schwab or Wise card to eliminate fees, and pull out larger amounts. 10,000–15,000 THB ($280–$420) per withdrawal makes sense.

Japan

Exchange $300–500 worth of yen before landing if possible. 7-Eleven ATMs (Seven Bank) accept most foreign cards and have English interfaces — they're your best bet in-country.

Mexico

Cards are increasingly accepted in cities, but cash is king in smaller towns and markets. Pesos are easy to get at good rates from Mexican ATMs. Avoid Banamex ATMs; use BBVA or Santander.

Europe (Schengen Zone)

Card acceptance is high. Bring €100–150 for markets, small restaurants, and tips. Northern European countries (Norway, Sweden, Denmark) are nearly cashless — €50 is plenty.

India

Carry more cash than you think you'll need. ATMs can run dry in smaller cities around holidays. Aim for 5,000–10,000 INR ($60–120) on hand at all times. Many guesthouses, autos, and local restaurants are cash-only.

What to Do With Leftover Cash

You'll almost certainly come home with some local currency. Here's what to do with it:

Keep it if you're returning to the same country within a year
Exchange at your bank (some accept foreign currency, others don't)
Use it at the destination airport before departure — duty-free, food, tips
Currency exchange apps like Wise or Revolut — reload the card with local currency, use the balance digitally
Donate it — many international airports have charity boxes for leftover coins

Avoid converting back at airport kiosks. You'll lose 5–10% minimum.

Let Faroway Help You Budget for Your Destination

Every destination has its own cash quirks — and what works in Barcelona fails completely in Bali. When you're building your itinerary with Faroway, you can factor in the actual cost breakdown for your specific route, including which parts of your trip will need cash vs. cards.

Faroway's AI trip planner builds personalized day-by-day itineraries and can help you think through the practicalities — transport options, accommodation mix, activity costs — so you arrive knowing exactly what you're getting into, not guessing at an airport ATM.

Quick Reference: The Cash Checklist

Before every international trip, run through this:

[ ] Do I have a no-foreign-transaction-fee credit card?
[ ] Do I have a no-fee ATM card (Schwab, Fidelity, or Wise)?
[ ] Have I ordered $50–100 of local currency for arrival?
[ ] Do I know which ATM networks to use in my destination?
[ ] Have I set up travel alerts with my bank and credit cards?
[ ] Do I know the card acceptance landscape (cash-heavy vs. card-friendly)?

Get these right and you'll spend more money on the actual trip, less on fees and poor exchange rates.

The biggest mistake travelers make isn't bringing too little cash — it's not having a plan at all. Know your destination, carry the right cards, and treat cash as the smart backup it is. Your wallet will thank you.

Ready to plan every detail of your next international trip? Start with Faroway — the AI trip planner that handles itineraries, logistics, and the on-the-ground details that make travel actually work.

How Much Cash to Bring When Traveling Internationally (2025 Guide)