The Highest (and Lowest) Speed Limits in the World

Quick answer: The world's highest posted speed limits are 140 km/h — on selected motorways in Poland, Bulgaria, Kazakhstan and the UAE — while Germany's autobahn famously has no general limit at all (130 km/h is advisory). At the other extreme, the island nation of Palau caps its entire road network at 25 mph (~40 km/h) and Tuvalu at 40 km/h. Every country's urban, rural and motorway limits are in our driving laws directory, verified August 2026.

The fast end

Germany is the only country with motorways that genuinely have no general limit — though about a third of the autobahn network carries posted limits anyway, and the 130 km/h "Richtgeschwindigkeit" advisory has legal teeth in an insurance dispute. Behind it sit Poland (140 on motorways), Bulgaria (140), Kazakhstan (140 on selected expressways) and the UAE, where some Abu Dhabi highways sign 140. A large group — France, Croatia, Slovakia, Romania, Hungary among them — sits at 130.

The slow end

Small islands win the slow race for a simple reason: there is nowhere to go fast. Palau's national maximum is 25 mph; Tuvalu's is 40 km/h; several Caribbean islands post 30-40 mph as their fastest roads. City-states like Monaco never exceed urban limits at all. Among larger countries, Japan is notably conservative — a statutory 60 km/h default outside motorways.

Same number, different meaning

A limit only means what its enforcement makes it mean. The UK's 70 mph is one of the world's most policed numbers; other countries post 100 on roads where the average truck cannot reach it. That is why the limit column in our driving laws table sits beside the drink-driving column and the death-rate rankings — the three together tell you what driving somewhere is actually like. Germany's unlimited autobahn coexists with one of Europe's better safety records; several 100 km/h countries sit near the top of the fatality table.

Why the physics still votes for lower

Whatever the sign says, braking distance grows with the square of speed — at 140 km/h you need roughly double the stopping room of 100 km/h, and crash energy doubles too. Run the comparison yourself in the stopping distance calculator. The WHO's consistent finding across countries: cutting average speeds by 5% cuts road deaths by around 30%, which is why urban limits worldwide are converging on 30-50 km/h even as motorway limits inch up.

Before you drive abroad

Check your destination's three defaults — urban, rural, motorway — plus which side of the road it drives on and whether you need an International Driving Permit, all on its page in the driving laws directory. Posted signs always override national defaults, and speed-camera tolerance varies from "generous" to "zero plus a fine in the post". And save the local number from our emergency numbers directory — the one lookup you cannot do after you need it.