Average speed describes a whole journey, including slow and fast sections. It is total distance divided by total time, not the average of several speeds.
How to use it
Enter distance and time with any units. To plan a trip, type your expected speed in the result to see how far you will travel.
Common mistake
Driving 60 km at 60 km/h and another 60 km at 30 km/h does not average 45 km/h. Total time is 3 hours for 120 km, so the true average is 40 km/h.
Inputs explained
| Field | What to enter |
|---|---|
| Distance | Units: m, km, mi, ft |
| Time | Units: s, min, h |
What each result means
- Average speed = [Distance] ÷ [Time]
- Pace = [Time] ÷ [Distance] × 1000 ÷ 60
Example values
How the main result changes when Distance changes and everything else stays at the example values above:
| Distance (m) | Average speed (m/s) |
|---|---|
| 60,000 | 11.11 |
| 90,000 | 16.67 |
| 120,000 | 22.22 |
| 150,000 | 27.78 |
| 180,000 | 33.33 |
| 240,000 | 44.44 |
Formula
speed = distance ÷ timedistance = speed × timetime = distance ÷ speedWorked example
120 km in 1 h 30 min (5,400 s).
Speed = 120,000 m ÷ 5,400 s ≈ 22.22 m/s = 80 km/h (49.7 mph). Pace = 0.75 min/km.
Key terms
- Average speed
- Total distance divided by total time.
- Velocity
- Speed with a direction.
- Pace
- Time per unit distance, used in running.
Frequently asked questions
How do I convert km/h to m/s?
Divide by 3.6.
What is a knot?
One nautical mile (1,852 m) per hour, about 1.852 km/h.
Can I calculate time?
Enter distance, then adjust time until the speed matches, or rearrange: time = distance ÷ speed.
What formula does the Speed Distance Time Calculator use?
speed = distance ÷ time.
Can I work backwards from the result?
Yes. Type the result you want into Average speed and the calculator finds the matching distance.