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Common theory questions

What is the stopping distance?

The stopping distance is the entire distance the car travels from when you discover an obstacle or a hazard until the car comes to a complete stop. The stopping distance is made up of two parts: a reaction distance and a braking distance.

Stopping distances in ideal conditions:

  • 30 km/h: 13.5 metres
  • 50 km/h: 27.5 metres
  • 70 km/h: 45.5 metres
  • 90 km/h: 67.5 metres
  • 110 km/h: 93.5 metres

If the reaction time is longer than the average (one second) and/or if the braking occurs in other than ideal conditions, the stopping distance can be many times greater.