The Complete Currency Exchange Guide for International Travel: Where, When, and How Much?

Currency exchange is one of those things you simply can't skip when planning an international trip. Depending on where, when, and how much you exchange, the difference can add up to a surprising amount over the course of a trip. Even when you convert the exact same amount, the foreign currency you actually walk away with can vary significantly depending on the method you choose. In times like these, when exchange rates swing sharply, picking the right timing and approach is the first step toward stretching your travel budget further.

Yet surprisingly few places explain currency exchange in a clear, systematic way. Is a bank better, or is the airport more convenient? Is it smarter to exchange money once you arrive, or to just pay by card? Facing so many options, it's completely natural to feel confused. In this article, we've pulled together everything about exchanging money for international travel — from the basic concepts to the pros and cons of each method, country-by-country tips, how to monitor exchange rates, money management on the road, how to avoid exchange scams, and how to make the most of digital payments. With this one guide, you can dramatically cut down the time you spend agonizing over currency exchange.

The Basics: Understanding Exchange Rates, Commissions, and Spreads

To exchange currency well, you first need to understand three basic concepts: the exchange rate, the commission, and the spread. Once you grasp these three, you'll be able to judge for yourself where it's most advantageous to exchange your money.

The exchange rate is the ratio at which one currency is traded for another. For example, if one US dollar is worth 1,300 Korean won, that means you'd receive 100 dollars for 130,000 won. Exchange rates fluctuate in real time on the international foreign exchange market, and the rate a bank or exchange office gives you is that market rate plus a certain margin. The rate reported in the news is the market reference rate (mid-market rate), and the rate actually applied when you exchange money is either higher or lower than that.

The commission is a separate fee charged by the exchange service provider. Some banks and exchange offices add a per-transaction commission on top of the rate. For example, a "1% exchange commission" means that exchanging 1,000,000 won costs you 10,000 won in fees. That said, many Korean banks don't charge a separate commission at all; instead, they build their margin directly into the exchange rate.

The spread is the gap between the buying rate and the selling rate. The price when you buy dollars from a bank (the selling rate) differs from the price when you sell them back (the buying rate), and that gap is the bank's real profit. The wider the spread, the worse it is for the customer. At major banks the dollar spread typically runs around 1.5–1.75%, and receiving a preferential rate narrows that spread. For instance, with a 90% preferential rate, 90% of the spread is waived, letting you exchange money at nearly the mid-market rate.

Comparing the Pros and Cons of Each Exchange Method

1. Exchanging at a Major Bank

This is the most traditional and safest method. You can exchange currency at Korea's major banks (KB Kookmin, Shinhan, Hana, Woori, NH Nonghyup, and others), either by visiting a branch or applying through internet/mobile banking. The biggest advantage of exchanging at a bank is reliability. There's no risk of counterfeit bills, you get a receipt, and if something goes wrong, you can resolve it through the bank.

The key to exchanging at a bank is making the most of the preferential rate. Walking into a branch usually gets you a 30–50% preferential rate, but exchanging through internet/mobile banking can get you 70–90%. For example, when exchanging 1,000,000 won worth of dollars, the difference between a branch visit (50% preferential) and mobile banking (90% preferential) comes to roughly 5,000–8,000 won. The larger the amount, the wider this gap grows.

Each bank also has its own strengths in different currencies. Hana Bank has traditionally been strong in foreign exchange, handling a wide range of currencies and offering generous preferential rates. KB Kookmin Bank has an easy-to-use app and frequently runs exchange promotions. Shinhan Bank also lets you exchange money conveniently through its SOL app, with high preferential rates. It's worth comparing several banks' rates and exchanging wherever you get the best deal.

2. Airport Exchange Offices

The greatest advantage of airport exchange offices is convenience. Being able to exchange money right before departure is handy when you're short on time. However, the rates are often less favorable than at major banks. Because airport exchange offices have to cover high rent and operating costs, they set their exchange margins accordingly wide. Generally the rate is about 1–3% worse than at a major bank, which on 1,000,000 won means a loss of 10,000–30,000 won.

That said, at Incheon Airport there are bank-operated exchange offices that offer better rates than the general kiosks. Even better, if you apply for your exchange online in advance and pick it up at the airport, you can enjoy internet-banking-level preferential rates while still collecting your money conveniently at the airport. We strongly recommend this approach. Banks like Hana and KB Kookmin offer this service — simply exchange through the app and designate an airport branch as your pickup location.

3. Local Exchange Offices

This means exchanging money at a private exchange office at your destination. Depending on the country and region, the rate can be very favorable or very unfavorable. In Southeast Asia, local exchange offices often offer better rates than Korean banks. Famous exchange offices in Bangkok, Thailand, such as SuperRich and VASU, provide rates far better than major banks.

On the other hand, in Europe or Japan, local exchange offices are usually less favorable than in Korea. In particular, exchange offices near European tourist spots have very high commissions and spreads, so you can lose a lot. When using a local exchange office, always check the rate board and ask whether there's a separate commission. Even if it says "No Commission," a high margin is often already baked into the rate itself, so stay alert.

4. Withdrawing from Overseas ATMs

You can also withdraw cash directly from an ATM at your destination. Using an international debit card or a prepaid travel card, you can withdraw the local currency from an ATM abroad. The advantage of this method is that you can withdraw only what you need, so there's no worry about leftover foreign currency. It's also handy for emergencies when you run out of cash mid-trip.

However, ATM withdrawals usually come with a fee. You may be charged twice — once by your Korean card issuer (typically 3,000–5,000 won per withdrawal) and once by the operator of the local ATM. On top of that, since the exchange rate is applied at the time the transaction is processed rather than at the moment of withdrawal, a small rate difference can occur. When using ATMs, always choose one in a safe location such as a bank or convenience store, and avoid standalone ATMs on the street, which carry a risk of card skimming.

5. Paying by Credit or Debit Card Abroad

This is the method of paying directly by card without exchanging cash. Lately there are many card products with low overseas transaction fees, so depending on the situation this can be more advantageous than exchanging cash. A regular credit card's overseas transaction fee consists of the international brand fee (1–1.2%) plus the bank fee (0.2–0.5%), totaling around 1.2–1.7%. But with a card designed for overseas payments, you can drastically reduce or even waive these fees.

Country-by-Country Tips: Which Currency to Exchange, and Where

Japan (Japanese Yen, JPY)

When traveling to Japan, it's more advantageous to exchange yen in Korea beforehand. Local exchange offices in Japan (ryōgaesho) tend to have high fees, and places that convert Korean won into yen are limited. The most economical option is to exchange at a Korean major bank through internet/mobile banking with a 90% preferential rate. That said, you don't need to carry your entire travel budget in cash. Japan is still known as a cash-based society, but the number of places accepting card payments has grown enormously in recent years. Convenience stores, large chain stores, hotels, and transit (Suica/PASMO) mostly accept cards. Still, small restaurants, shrines and temples, and vending machines often require cash, so it's reasonable to prepare about 60–70% of your total budget in cash.

Europe (Euro, EUR)

The euro is also better to exchange in Korea in advance. Local exchange offices in Europe generally offer unfavorable rates, and those near tourist spots have especially high fees. The best approach is to exchange at a Korean bank through internet/mobile banking and pick it up at the airport. Europe has a highly developed card payment infrastructure, so cards are accepted even for small purchases in many places. Northern Europe (Sweden, Norway, Denmark, and so on) is close to a cashless society, so you can travel comfortably on card alone. However, some Central European countries such as Germany and Austria still favor cash, so keep some on hand. Preparing about 30–40% of your total budget in cash is plenty.

There's one thing to watch out for when paying by card in Europe. Sometimes the card terminal will ask you to choose whether to pay "in the local currency (euros) or in your home currency (won)." This is called DCC (Dynamic Currency Conversion), and you should always choose the local currency (euros). If you choose to pay in won, a DCC fee (3–7%) is added on top, causing a significant loss.

The United States (US Dollar, USD)

The dollar is the easiest currency to exchange in Korea, and it comes with the highest preferential rates. It's advantageous to exchange in Korea beforehand. Card payments are very common in the US, so aside from tips, you can use a card almost everywhere. But because of the tipping culture, it's a good idea to prepare plenty of small bills like $1 and $5. When exchanging at a bank, if you request small denominations you can receive them at no extra charge. Keeping about 30% of your total budget in cash (mostly small bills) and paying the rest by card is convenient.

Southeast Asia (Thai Baht, Vietnamese Dong, Philippine Peso, etc.)

Unlike other regions, for Southeast Asian currencies it's often more advantageous to exchange locally. That's because exchanging Southeast Asian currencies directly at a Korean bank carries a very large spread (around 5–8%). Instead, it's far better to exchange dollars first and then convert the dollars into local currency once you arrive. Alternatively, exchange only a small amount of local currency in Korea (enough for immediate needs like a taxi from the airport) and exchange the rest at a well-known local exchange office.

In Thailand, the SuperRich exchange offices in Bangkok are famous for offering the best rates. There are two — Green SuperRich and Orange SuperRich — and the rates are nearly identical and both are trustworthy. In Vietnam, you can get good rates at the gold shops around Ben Thanh Market in Ho Chi Minh City, but be sure to confirm that they're a licensed exchange. In the Philippines, the rates at Manila airport's exchange offices aren't bad, but exchange offices inside large malls in the city, such as SM Mall, offer better rates.

Timing: Monitoring Rates and Splitting Your Exchange

Exchange rates fluctuate every day and every hour. So depending on when you exchange, the same amount can yield different amounts of foreign currency. Unless you're an exchange-rate expert, it's hard to time the exact bottom, but following a few basic principles can help you avoid unnecessary losses.

First, we recommend splitting your exchange. Rather than exchanging the full amount at once, exchange in 2–3 batches starting 2–4 weeks before departure. This spreads out the risk of rate fluctuations. For example, if you need to exchange 1,000,000 won, you might exchange 400,000 won two weeks out, another 400,000 won one week out, and the final 200,000 won right before you leave. In finance this is known as the DCA (Dollar Cost Averaging) strategy, a method also widely used in personal investing.

Second, take advantage of rate alert services. Most bank apps let you set a target rate and notify you when that rate is reached. For example, if you set an alert for "notify me when the dollar drops below 1,280 won," you won't miss a favorable rate. You can also check real-time rate trends on Naver Finance or exchange-rate comparison apps.

Third, weekday mornings tend to be more favorable. Exchange rates move most actively on weekday mornings when the foreign exchange market is open, whereas on weekends and holidays banks often apply conservative rates. If possible, exchanging on a weekday morning can be advantageous. That said, this is only a general tendency and isn't always the case, so treat it as a rough guideline.

Managing Your Money on the Road: Balancing Cash and Cards

Managing money while traveling is all about striking a balance between safety and convenience. Carrying only cash brings a big risk of loss or theft, while relying only on cards can leave you stuck when card payments aren't accepted. Combining cash and cards appropriately is the wisest approach.

Splitting up your cash is the most basic of basics. Don't keep all your exchanged cash in one place — split it across at least three spots. Put about a day's worth of spending in your wallet, and stash the rest in the hotel safe and a hidden pocket inside your bag. Using a money belt is also a good idea. Even if you lose your wallet, you can keep your trip going with the cash stored elsewhere.

Bring at least two cards. Use a card designed for overseas payments as your main one, and pack a card from a different issuer as a backup. Carrying one VISA and one Mastercard lets you handle a payment network outage. A JCB card is especially useful in Japan, and a UnionPay card is essential in China. To prepare for a lost card, jot down your card issuer's overseas emergency contact number, and separately record your card number and expiration date.

Managing your travel budget matters too. Set a daily budget before departure and record your spending each day so you can check whether your travel expenses are staying on plan. With myTravel's expense management feature, you can automatically organize spending by currency and see your total travel costs at a glance. To prepare for unexpected expenses, we recommend leaving about 10–15% of your total budget as a reserve.

Avoiding Exchange Scams: Know These and You Won't Get Caught

There are plenty of cases where travelers get scammed exchanging money abroad. Clever exchange scams are especially common in areas with lots of tourists. Knowing the following types in advance can help you prevent falling victim.

First, rate board manipulation. Sometimes the rate posted outside an exchange office differs from the rate actually applied. The trick is to display an attractive rate on the board, then apply an unfavorable one during the actual transaction, claiming there's "a separate commission" or that "the posted rate is for bulk exchanges." Before exchanging, always confirm exactly "how much you'll end up receiving" and check the math yourself.

Second, shortchanging. This is a trick where the staff count out the foreign currency as they hand it over but slyly palm some of the bills. The exchange clerk might quickly count the notes while concealing a few by sleight of hand, or reduce the count after diverting your attention. Always recount the currency you receive yourself, right there, slowly. It's important to check before you leave the counter.

Third, mixing in counterfeit bills. Sometimes counterfeit notes are slipped in among genuine ones. Counterfeits tucked between high-denomination bills are especially hard to spot. Using a licensed exchange office or bank lets you avoid this risk. Never use street touts offering to exchange money.

Making the Most of Digital Payments: Traveling Cash-Free

As digital payments spread rapidly around the world, the number of countries where you can travel without cash keeps growing. By making good use of cards designed for overseas payments and mobile payment services, you can save a great deal on exchange fees.

Travel cards (prepaid travel cards) are the most popular overseas payment method these days. Toss Travel Card, Hana Travlog, Shinhan SOL Travel, and KakaoBank Travel Account are prime examples. These cards carry overseas transaction fees of just 0–1%, making them very affordable, and you can check your balance and transaction history in real time through the app. Loading them with your desired currency in advance also reduces the risk of rate fluctuations.

Apple Pay and Google Pay are also very useful abroad. You can pay with just your smartphone or smartwatch, so you don't need to pull out a card, and the risk of loss drops as well. In developed countries such as those in Europe, the US, and Japan, most stores support mobile payments. Before departure, check that a card enabled for overseas use is registered for mobile payments.

Using country-specific mobile payment apps is convenient too. In China, Alipay and WeChat Pay are widely used; in Japan, PayPay; and in Thailand, PromptPay. Lately there's a trend of opening up some of these apps so that foreigners can use them as well. When traveling in China, using Alipay's Tour Pass feature lets even foreigners make QR-code payments.

The Essential Exchange Checklist: Confirm Before You Leave

We've compiled the things you should check regarding currency exchange before you set off. Following this checklist will minimize the stress that comes with exchanging money.

1. Understand the destination's currency and payment environment: Research in advance whether cards work well at your destination, or whether cash is mainly used.
2. Plan the amount to exchange: Calculate your estimated daily expenses, multiply by the number of travel days, and set the total amount you'll need. Include a reserve (10–15%) as well.
3. Compare bank rates: Compare the rates at 2–3 banks and check whether any preferential-rate promotions are running.
4. Apply through internet/mobile banking: Exchange through the channel that gives you the highest preferential rate.
5. Request small bills: Ask them to include small denominations for tips and minor purchases.
6. Prepare your overseas payment cards: Issue a travel card, check your overseas spending limit, and lift any block on overseas use.
7. Save your card issuer's overseas emergency contact: Store the number so you can immediately suspend a lost or stolen card.
8. Plan how to split up your cash: Make a plan to divide it across at least three places, such as your wallet, a money belt, and the hotel safe.

Smart, Budget-Friendly Travel with myTravel

myTravel helps you not only build your travel itinerary but also manage your travel expenses. AI analyzes the price levels of your destination to recommend an appropriate budget, and automatically organizes your spending by currency during the trip. When you plan your exchange in advance and manage expenses efficiently on the road, you can enjoy a richer trip on the same budget.

Smart currency exchange is the start of your trip and a key factor in determining your travel budget. Use the tips introduced in this guide to cut down on unnecessary fees, and put that money toward tastier food or special experiences instead. Small differences add up and change the quality of your trip. Start planning your trip on myTravel right now, and map out your exchange plan along with it.