Health & Fitness

Pace Calculator

Calculate running or walking pace, speed, and finish time predictions

Last reviewed: How we build & verify
Pace (min/km)
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Pace (min/mi)
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Speed
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Speed
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How it works

Converts between pace, speed, distance, and finish time for running, cycling, and swimming. Pace is time per unit distance; speed is its reciprocal.

Formula
Pace = Time / Distance   |   Speed = Distance / Time
Variables
  • Paceminutes per km or per mile
  • Speedkm/h or mph
Worked example
Inputs: Marathon (42.195 km) in 3 h 45 min
  1. Total minutes: 225
  2. 225 / 42.195 = 5.333 min/km
  3. 0.333 min = 20 s
Result: 5:20 per km (11.25 km/h)
Notes
  • To convert min/km to min/mile, multiply by 1.609.
  • Negative splits, meaning running the second half slightly faster, usually produce better finish times than starting fast.

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Frequently Asked Questions

Pace = total time ÷ total distance. For a 5 km (3.1 mi) run completed in 25 minutes: pace = 25 ÷ 5 = 5 min/km (or 8:03 per mile).

Ranges widely. Casual joggers: 7-9 min/km. Intermediate: 5-6 min/km. Competitive amateurs: 4-5 min/km. Elite: under 3 min/km.

Finish time = distance × pace. For a marathon (42.195 km) at 5:30 min/km pace: 42.195 × 5.5 ≈ 232 min = 3 hours 52 minutes.

Pace Calculator | ExaCalc