Fitness · running
Running Pace Calculator
By the Dailycaltor team · formula-verified · last updated July 2026
Your pace per km and per mile, instantly.
5K = 5 · 10K = 10 · half = 21.1
Pace per km
—
Details
Pace per mile—
Speed—
10K at this pace—
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Formula
Pace = total time ÷ distance. Per-mile pace = per-km pace × 1.60934. Speed (km/h) = distance ÷ hours. Race projections assume you hold the same pace — real races usually slow slightly with distance.
Worked examples
- 5 km in 27:30 → 5:30/km (8:51/mi), 10.9 km/h.
- A 6:00/km runner finishes 10K in 1:00:00.
- Half marathon (21.1 km) at 5:30/km ≈ 1:56.
Common mistakes
- Mixing km and miles mid-calculation.
- Projecting a 5K pace onto a marathon — longer races run slower.
- Entering total minutes in the seconds field.
Last updated: July 2026. Educational estimates only.
Questions
How do I calculate running pace?
Divide total time by distance: 30 minutes over 5 km is 6:00 per km.
What is a good 5K pace?
Recreational runners often land 5:30–7:30/km; elites run near 3:00/km.
Convert pace per km to per mile?
Multiply by 1.609: 5:00/km ≈ 8:03/mile.
Does the tool predict race times?
It projects an even pace; expect real long-race times a bit slower.
Treadmill speed for my pace?
Speed km/h = 60 ÷ pace minutes. 6:00/km = 10 km/h.