Vehicle Stopping Distance Table: Total stopping distance by Speed
Reference table of total stopping distance for Vehicle Stopping Distance across a range of speed values — exact, engine-computed figures you can read off at a glance.
Vehicle Stopping Distance Calculator
Verified formula Updated Jun 2026 Private — runs on your device
Verified formula
Private
Total stopping distance
45.23
- Braking distance
- 20.23
For general information only — not financial, tax, legal or medical advice. Verify before you rely on it.
How to use the Vehicle Stopping Distance Calculator
The Vehicle Stopping Distance Calculator works out your total stopping distance, along with 1 related figure in an instant. Enter speed, reaction time and friction coefficient and the result updates as you type — it is free, needs no sign-up, and runs entirely in your browser so your figures stay private.
- Enter the speed.
- Enter the reaction time.
- Enter the friction coefficient.
- Read off your total stopping distance, together with braking distance — the calculator updates automatically, with no button to press.
Formula
The Vehicle Stopping Distance Calculator uses the formula:
Total stopping distance = Speed ÷ 3.6 × Reaction time + (Speed ÷ 3.6)^(2) ÷ (2 × Friction coefficient × 9.81)
Worked example
For example, with speed of 60 km/h, reaction time of 1.5 seconds and friction coefficient of 0.7, the total stopping distance is 45.23.
| Speed | 60 km/h |
|---|---|
| Reaction time | 1.5 seconds |
| Friction coefficient | 0.7 |
| Total stopping distance | 45.23 |
|---|---|
| Braking distance | 20.23 |
Results are estimates for educational use, not professional advice.
Frequently asked questions
It is reaction distance plus braking distance. At 60 km/h with a 1.5 s reaction and 0.7 friction, the total is about 45 m.
The distance travelled while you notice a hazard and start braking, equal to speed times reaction time.
Braking distance grows with the square of speed, so doubling speed roughly quadruples the braking distance.
It reflects tyre and road grip. Dry roads are around 0.7; wet or icy roads are much lower, so distances grow.
The Vehicle Stopping Distance Calculator uses the formula: Total stopping distance = Speed ÷ 3.6 × Reaction time + (Speed ÷ 3.6)^(2) ÷ (2 × Friction coefficient × 9.81). For example, with speed of 60 km/h, reaction time of 1.5 seconds and friction coefficient of 0.7, the total stopping distance is 45.23.
Enter the speed. Enter the reaction time. Enter the friction coefficient. Read off your total stopping distance, together with braking distance — the calculator updates automatically, with no button to press.
Related guides
How to Calculate Vehicle Stopping Distance: Formula, Steps & Examples
Learn how to calculate Vehicle Stopping Distance — the formula explained step by step, with worked examples and a free calculator to check your answer.