What is a good 5K pace?
It varies widely by experience—compare to your recent races, not strangers online.
Running Pace Calculator
Enter distance and time to get pace in min/mi and min/km plus speed in mph and km/h.
Distance and time
Choose km or miles, then enter hours, minutes, and seconds.
About this calculator
How to use Running Pace Calculator, plus the formulas and logic behind the results.
Tool description
Pace tells you how many minutes each mile or kilometer takes. It is the main number runners use for training and race planning.
How to use
- Select km or miles for distance.
- Enter race or run distance.
- Enter elapsed time (h/m/s).
- Read pace splits and average speed.
Formulas & reference
Pace = total time ÷ distanceSpeed = distance ÷ time1 mile = 1.609344 km
Common race distances
- 5K ≈ 3.11 mi
- 10K ≈ 6.21 mi
- Half marathon ≈ 13.1 mi / 21.1 km
- Marathon ≈ 26.2 mi / 42.2 km
Calculation logic
Time converts to seconds, pace per unit is computed, and alternate-unit pace and speed are derived via standard conversions.
Assumes steady average pace—splits up and down hills will differ.
Running Pace Calculator FAQ
Common questions about this calculator and how to use the results.
Negative split?
Running the second half faster; this tool assumes one average pace.
Track vs road?
Same math; track distances are often metric (400 m laps).
Include walk breaks?
Enter total elapsed time including stops for true average pace.
How do I hit goal pace?
Use a watch or treadmill and practice even effort, not surges.
Pace vs speed?
Pace is min per distance (runner-friendly); speed is distance per hour.