Calculate thinking distance, braking distance, and total stopping distance based on speed, reaction time, and road conditions.
Vehicle Parameters
Default: 0.67s per Highway Code
Stopping Distance Breakdown
Working Calculations
Speed
-
Reaction Time (Thinking Distance)
-
Thinking Distance
- metres
- feet
Road Condition
-
Braking Distance (calculated using Highway Code deceleration)
- metres
- feet
Total Stopping Distance
Metres:
-
Feet:
-
Highway Code Reference Stopping Distances
(Assuming 0.67s thinking time, dry road conditions)
| Speed | Thinking (ft) | Braking (ft) | Total (ft) | Total (m) |
|---|---|---|---|---|
| 20 mph | 20 | 20 | 40 | 12 |
| 30 mph | 30 | 45 | 75 | 23 |
| 40 mph | 40 | 80 | 120 | 36 |
| 50 mph | 50 | 125 | 175 | 53 |
| 60 mph | 60 | 180 | 240 | 73 |
| 70 mph | 70 | 245 | 315 | 96 |