Pace Calculator
Calculate pace, elapsed time, or distance and convert the result to speed, minutes per kilometer, and minutes per mile.
Pace, time, distance, and speed formulas
For distance d and elapsed time t, pace is p = t ÷ d. Rearranging gives t = pd and d = t ÷ p. Speed is the reciprocal relationship expressed as distance per hour. The calculator converts distance to kilometers and time to seconds before solving.
Checked examples
| Known values | Calculation | Result |
|---|---|---|
| 5 km in 25:00 | 25 minutes ÷ 5 km | 5:00 min/km; 12 km/h |
| 10 km at 6:00 min/km | 10 × 6 minutes | 1:00:00 |
| 30:00 at 5:00 min/km | 30 ÷ 5 | 6 km |
| 3.1 miles in 24:00 | 24 ÷ 3.1 | ≈ 7:44.5 min/mi |
| 1 mile in 8:00 | 8 minutes ÷ 1 mile | 8:00 min/mi; 7.5 mph |
| 400 m in 1:20 | 80 seconds ÷ 0.4 km | 3:20 min/km; 18 km/h |
How to use this calculator
- Select pace, elapsed time, or distance as the unknown.
- Enter the two known values and choose the relevant units.
- Use
MM:SSorHH:MM:SSfor elapsed time and pace. - Calculate to see the result, equivalent pace and speed, plus same-pace reference times.
- Use moving time rather than total event time if you want a moving pace.
Units and limitations
- 1 mile = 1.609344 km; 1 kilometer = 1,000 meters; 1 yard = 0.9144 meters.
- Speed is shown in km/h, mph, and m/s. Pace is shown in minutes per kilometer and minutes per mile.
- Distance must be finite and greater than zero; time and pace must also be positive when used as known inputs.
- Seconds must be below 60. In
HH:MM:SS, minutes must also be below 60. - Reference times assume constant pace and do not adjust for terrain, fatigue, weather, stops, elevation, or race strategy.
Frequently asked questions
What is the difference between pace and speed?
Pace is time required per unit distance, while speed is distance covered per unit time. Faster movement means a lower pace value but a higher speed value.
Is pace the same as velocity?
No. Pace and speed use magnitude only. Velocity is a vector and also includes direction or displacement.
Should I include stopped time?
Use total elapsed time for event pace. Use moving time when you want pace only while in motion.
Can I use this for cycling or swimming?
Yes for distance-time calculations, but the displayed reference races and min/km or min/mile pace formats are oriented toward running and walking.
Related calculators
Use the Hours Calculator for duration arithmetic, the Average Calculator for multiple splits, the Kinetic Energy Calculator to combine mass and velocity, or the Percentage Calculator to measure pace improvement.
Planning a drive? Estimate gasoline or diesel use, tolls and shared trip expenses with the Fuel Cost Calculator.