Thailand on a South Korean Licence — IDP Required + the Left-Side Switch
South Korea
Thailand
A South Korean licence holder can drive in Thailand, but only with an International Driving Permit carried alongside it — the licence on its own is not accepted at rental desks or checkpoints. The two real adjustments are switching to the left and coping with dense, motorcycle-heavy traffic; the drink-drive limit is 0.05, looser than Korea's 0.03.
For South Korean visitors, Thailand is one of the more demanding self-drive destinations in the region — not because the licence rules are obscure, but because almost everything about the road environment is different from home.
Start with the paperwork, because here it is non-negotiable. A South Korean licence holder can drive in Thailand, but an International Driving Permit is required, not merely recommended. Thailand accepts the 1949-convention IDP, and rental companies and police checkpoints expect to see it sitting alongside your national licence and passport. Get the IDP issued in Korea first — you cannot arrange one after you land. Your home licence covers a tourist stay; longer residence pushes you toward a Thai conversion.
The bigger shift is physical. Thailand drives on the left, the mirror image of Korea, and you meet that switch in some of Asia’s most relentless traffic. Bangkok and the tourist islands swarm with motorcycles that filter on both sides, stop where you don’t expect, and treat lane markings as a suggestion. The danger window for a right-side-trained driver is the first hour and every roundabout after it — your instinct to look the wrong way is exactly what a scooter rider is relying on you not to do. Spend your first session somewhere quiet before you take on a city.
On the numbers that are actually documented: motorway driving runs to 120 km/h, rural roads to 90, and towns to 50. The blood-alcohol limit is 0.05 — looser than the 0.03 you live with in Korea, but don’t read that as licence to relax, because checkpoints around festivals and nightlife strips are common and the penalties are real. A typical speeding fine starts around THB 500–1,000 (roughly €13–26), often settled on the spot, so carry some cash.
Plan the trip properly: read the full Thailand driving guide for the local rules in detail, confirm your IDP class with the Driving Permit Checker, and if you want to picture the limits before you go, the Speed Limit Map lays them out by road type.
Speed limits, fines, equipment & license requirements
Your home country driving rules for reference
Renting a Car?
Compare prices from all major rental companies. Free cancellation on most bookings.
Compare Car Rental PricesSome links on this page are affiliate links. We may earn a commission at no extra cost to you. How our affiliate links work.
More Free Tools
Explore TyreMap
Frequently Asked Questions
Only together with an International Driving Permit. Thailand recognises the 1949-convention IDP, so a South Korean licence plus a valid IDP and your passport is the accepted combination. The IDP must be issued in Korea before you travel.
Thailand drives on the left, the opposite of South Korea. Add dense city traffic and constant motorcycles and the first day takes real concentration, especially at junctions and when overtaking.
0.05 BAC — actually higher than South Korea's 0.03 — but enforcement is heavy around holidays and nightlife areas, so treat it as zero before driving.