Overall stopping distance is made up of thinking distance and braking distance. You’re on a good, dry road surface, with good brakes and tyres. What’s the typical braking distance from 50 mph?

Be aware that this is just the braking distance. You need to add the thinking distance to this to give the overall stopping distance. At 50 mph, the typical thinking distance will be 15 metres (50 feet), plus a braking distance of 38 metres (125 feet), giving an overall stopping distance of 53 metres (175 feet). The stopping distance could be greater than this, depending on your attention and response to any hazards. These figures are a general guide.