Driving in Thailand as a United States National
Thailand drives on the left with unique traffic patterns, heavy urban congestion, and a mix of vehicles from motorcycles to tuk-tuks. An International Driving Permit is required.
Key Things to Know First
Thailand requires an International Driving Permit for foreign visitors. Obtain one in United States before departure.
How to get an IDPUnited States drives on the right, but Thailand drives on the left. Extra caution required at roundabouts, intersections, and after exits.
Tips for switching sidesUnited States uses mph, but Thailand uses km/h. Verify your GPS or navigation app is set to the correct unit.
Side-by-Side Comparison
| Rule | United States | Thailand | Change? |
|---|---|---|---|
| Traffic side | Right-hand traffic | Left-hand traffic | Yes |
| Speed unit | mph | km/h | Yes |
| IDP required | — | Yes | Yes |
| Min. driving age | 16 | 18 | Differs |
| Emergency number | 911 | 191 | Different |
| Road difficulty | Easy | Challenging | — |
Speed Limits in Thailand
Speed limits in Thailand are posted in km/h (kilometres per hour). Quick reference: 50 km/h ≈ 31 mph · 100 km/h ≈ 62 mph · 130 km/h ≈ 81 mph.
Documents to Carry in Thailand
- Original driving licence from United States — must be valid and unexpired
- International Driving Permit (IDP) — required in Thailand. Obtain from your national motoring association before travelling.
- Passport or national ID — carry at all times while driving
- Car insurance certificate — verify it covers Thailand before departure
- Vehicle registration / rental agreement
Emergency Number in Thailand
Primary emergency number in Thailand. Save it before you drive.
Emergency numbers for all countriesFull Thailand Driving Guide
Road rules, toll system, fuel types, parking, regional quirks — everything you need for driving in Thailand.
Read the complete guide