Study topic
Irish speed limits
Speed limits are one of the most-tested topics on the Irish driver theory test. Knowing the correct limit for each road type is essential -- getting it wrong on the day costs marks.
Key facts to remember
- ◆ Motorways: 120 km/h maximum for cars and light vehicles.
- ◆ National roads (single carriageway): 100 km/h.
- ◆ Regional (R) roads: 80 km/h.
- ◆ Rural local (L) roads: 60 km/h (reduced from 80 km/h on 7 February 2025).
- ◆ Built-up areas: 50 km/h (unless otherwise signed).
- ◆ School zones when in operation: 30 km/h.
Lower limits apply to buses, trucks, vehicles towing trailers, and learner drivers on certain road types. Always obey any posted sign, which overrides the default limit.