km/hBrussels
An introduction to the traffic rules and road signs of Brussels. Learn about driving, road safety and much more in our illustrated book, with answers to frequently asked questions.
For informational purposes only. Always follow official regulations. Some content and images were created with AI assistance.
128. km/h
km/h means kilometres per hour and is a unit used to measure speed. It expresses how many kilometres a vehicle or other moving object would travel in one hour if it maintained the same speed.
For example, a speed of 50 km/h means travelling at a rate of 50 kilometres per hour. Kilometres per hour are widely used for road speeds and speed limits in countries that use the metric system.
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Which speed unit is used on Belgian roads?
Belgium uses kilometres per hour (km/h) for road speeds and speed limits.
What does the number on a Belgian speed-limit sign mean?
The number on a C43 speed-limit sign indicates the maximum permitted speed in kilometres per hour. For example, a C43 sign displaying 50 means that drivers may not exceed 50 km/h.
Does a Belgian speed-limit sign have to display 'km/h'?
No. The number on a C43 sign is understood as a speed in kilometres per hour. Under the current Belgian Road Code, displaying the abbreviation 'km' on the sign is optional.

Traffic rules
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