Currency bills from various countries - exchange rate explained
Economics2026-04-08· 5 min read

The Secret of Exchange Rates — What Happens to Your Wallet When the Dollar Rises?

When the news says "the USD/KRW exchange rate broke 1,350 won today," most people think "so what?" But exchange rates have a direct impact on your wallet — more than you might realize.

What Is an Exchange Rate? — Think of It Like Buying Apples

Currency exchange - understanding dollar exchange rates

An exchange rate is simply "the price of money." Just like an apple costs $1, one dollar costs 1,350 won — that's the exchange rate.

When the rate goes from 1,200 to 1,400? It's not that the dollar got more expensive — it's that the won lost value. You need more won to buy the same dollar.

What Happens When the Dollar Rises?

1. Travel gets expensive
At 1,200 won/$, $100 = 120,000 won. At 1,400 won/$, $100 = 140,000 won. Same trip, 17% more expensive.

2. Import prices climb
iPhones, Nintendo Switch, imported coffee, foreign cars — everything priced in dollars costs more. "Why did the iPhone price go up?" Often, the answer is the exchange rate.

3. Exporters celebrate
Companies like Samsung and Hyundai earn in dollars and convert to won. A higher exchange rate means bigger profits in local currency.

Historic Exchange Rate Moments in Korea

Financial chart - Korean exchange rate history

1997 IMF Crisis — The rate surged from 800 to 2,000 won almost overnight. Import prices more than doubled. Companies with foreign debt went bankrupt.

2008 Financial Crisis — Jumped from 900 to 1,500 won. Korean students abroad saw tuition effectively spike 60%+.

2020 COVID — Briefly hit 1,280, then stabilized. Later climbed to 1,300–1,400 range during U.S. rate hikes in 2022–2023.

Everyday Things Affected by Exchange Rates

More things than you'd think:
Netflix subscription — Priced in USD; Korean rates may adjust with the exchange rate.
Online shopping from abroad — Amazon, iHerb orders cost more.
Study abroad costs — Tuition and living expenses both tied to exchange rates.
Oil & gas prices — Crude oil trades in dollars; a weaker won means pricier fuel.

3 Forces That Move Exchange Rates

1. Interest rate differential — When U.S. rates are higher than Korea's, money flows to the U.S., strengthening the dollar.

2. Trade balance — More exports bring dollars in (won strengthens). More imports send dollars out (won weakens).

3. Geopolitical risk — Korean peninsula tensions or global instability drive money to the "safe haven" dollar.

Want to test your global price instincts? Try guessing Big Mac prices by country!