Theory-test visual trainer

Learn NI stopping distances visually.

Pick a speed, estimate the total stopping distance and reveal the Northern Ireland Highway Code figure. Then use quiz mode until the numbers are automatic.

CAR

Thinking

Braking

Thinking distance9 m

Braking distance14 m

Total stopping distance23 m

Quick practice

At 30 mph, what is the typical total stopping distance?

Official NI figures

Typical dry-road stopping distances from the Highway Code for Northern Ireland.

20 mph6 m thinking6 m braking12 m total

30 mph9 m thinking14 m braking23 m total

40 mph12 m thinking24 m braking36 m total

50 mph15 m thinking38 m braking53 m total

60 mph18 m thinking55 m braking73 m total

70 mph21 m thinking75 m braking96 m total

Conditions change everything. The Highway Code says the following gap should be at least doubled on wet roads and increased further on icy roads. Wet-road stopping distances can be at least double dry-road distances.

Source: The Highway Code for Northern Ireland, rule 126 · Checked 22 September 2026.

Quick practice

Official NI figures

Related NI driving-test resources

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