Running pace
Solve pace, time or distance and generate splits at a constant speed.
Your inputs
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Your result
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How it works
- Duration (hh:mm:ss) = Distance × Pace per selected distance unit (hh:mm:ss); Speed = d/t; Split interval (zero to omit; selected distance unit): tₙ = min(tᵣ, tᵢ)
- Worked example: 10 km /50 min = 12 km/h; 50 min/10 km = 5 min/km; 5 km × 5 min/km = 25 min
- Supported input limits: Distance: 1e-12 ≤ x ≤ 1000000000000; Duration (hh:mm:ss): n ≤ 14; Pace per selected distance unit (hh:mm:ss): n ≤ 14; Split interval (zero to omit; selected distance unit): 0 ≤ x ≤ 1000000000000
Assumptions and limitations
Pace and splits assume constant speed, not a predicted performance or training prescription.
Sources
- NIST — conversion factor conventions Sources reviewed: 2026-10-06
- NIST — conversion factor table B.8 Sources reviewed: 2026-10-06
