Half Marathon Running Pace Calculator
Work out the pace you need to finish a Half Marathon run in a target time. Enter your finish time in minutes (7.5 means 7 minutes 30 seconds) to see…
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Work out the pace you need to finish a Half Marathon run in a target time. Enter your finish time in minutes (7.5 means 7 minutes 30 seconds) to see pace per kilometre, pace per mile and average speed.
For general information only, not medical advice. Consult a qualified health professional before making health decisions.
Worked example
Example calculated from the starting values. Enter your own values and press Calculate to get your result.
With the default inputs (target finish time = 125 minutes), the results are: pace per km 5.92 min/km; pace per mile 9.54 min/mile; average speed 10.13 km/h.
Quick reference: target finish time vs result
Reference table based on the example values; it is not your calculation result.
| Target finish time (minutes) | Pace per km | Pace per mile | Average speed |
|---|---|---|---|
| 62.5 | 2.96 min/km | 4.77 min/mile | 20.25 km/h |
| 125 | 5.92 min/km | 9.54 min/mile | 10.13 km/h |
| 250 | 11.85 min/km | 19.07 min/mile | 5.06 km/h |
| 625 | 29.62 min/km | 47.68 min/mile | 2.03 km/h |
| 1,250 | 59.25 min/km | 95.35 min/mile | 1.01 km/h |
| 2,500 | 118.50 min/km | 190.70 min/mile | 0.51 km/h |
Frequently asked questions
What formula does this calculator use?
Pace per km = t ÷ dist; Pace per mile = t ÷ dist × 1.609344; Average speed = dist ÷ t × 60. Variables: t = target finish time in minutes. Fixed values: dist = 21.0975.
What do I need to enter?
You need target finish time (minutes). Results update as you type.
What is an example result?
With the default inputs (target finish time = 125 minutes), the results are: pace per km 5.92 min/km; pace per mile 9.54 min/mile; average speed 10.13 km/h.
What distance is a Half Marathon?
This calculator uses 21.0975 km for a Half Marathon.
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