Pace Calculator
Enter a distance and finish time to get pace per kilometer and per mile, speed in km/h and mph, and predicted finish times for the mile, 5K, 10K, half marathon and marathon at the same pace.
TheCalculators — Pace Calculator
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Pace
10:05 /km
16:14 /mile · speed 5.95 km/h (3.70 mph)
- Pace per kilometer
- 10:05 /km
- Pace per mile
- 16:14 /mile
- Speed
- 5.95 km/h · 3.70 mph
- Total time
- 50:25
- Distance
- 5.00 km (3.11 mi)
Predicted finish times at this pace
Predictions assume the same effort and even splits across the full distance.
Real-world times shift with hills, weather, fatigue and pacing strategy. Estimates for informational purposes only — not medical advice.
Most useful next
Formula
Pace = time ÷ distance · Speed = distance ÷ time · 1 mile = 1.609344 km
- • Convert the finish time to seconds (h × 3600 + m × 60 + s).
- • Divide by distance in km (or miles) for pace; invert for speed.
- • Scale the pace to each race distance for finish-time predictions.
Pro tips
- • Placeholder zeros can be skipped — 5 minutes 3 seconds can be entered as 0 h, 5 min, 3 s.
- • An aerobic threshold pace you can hold for hours is the foundation of marathon training.
FAQ
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