The running pace calculator solves the third of distance, time, and pace when you know two—km or miles, with race presets.
How to use
- Pick km or miles and enter distance (or a preset).
- Time → pace: enter h/m/s. Pace → time: switch mode and enter pace min/sec.
- For race finish estimates see race time; for burn see calories burned.
Example
5 km in 25:00 → 5:00/km. At 5:00/km for 10 km → 50:00 total.
Steady-pace math—hills and stops not modeled.
Frequently asked questions
What is running pace?
Time to cover each km or mile. Enter any two of distance, total time, and pace—this page solves the third, in km or miles.
What are the two modes?
Distance + time → pace: enter distance and h/m/s.Distance + pace → time: switch mode and enter pace min/sec. Results update as you type.
Link to race time calculator?
The race time calculator is pace × distance → finish time. This page also back-solves pace from a known time—handy after a run.
Treadmill vs outdoor pace?
Not always—incline, wind, and calibration change effort. This is steady-state math; use outdoor tests for race predictions.
Pace and calories burned?
Faster pace usually means more burn for the same distance, plus weight and terrain. Estimate with the calories burned calculator or steps to calories for walking.
Half/full marathon presets?
Use preset chips (5K, 10K, half, full) or type any distance. When you switch km/mi, the same field means different lengths—verify the unit.
Share this run setup?
Yes. After you enter distance, units, time, or pace, use Copy link below the form so others open the same mode and numbers.