Pace Calculator — Running & Walking Pace
Enter your distance and finish time to get your exact pace per kilometre or mile, your speed in km/h or mph, and predicted finish times for common race distances — 5K, 10K, half-marathon and marathon.
Distance unit
km
hr
min
sec
- 1
Total time in seconds
0 × 3600 + 25 × 60 + 0 = 1,500 - 2
Total time in minutes
1,500 ÷ 60 = 25 - 3
Pace per km
25 ÷ 5 = 5:00Decimal minutes converted to mm:ss format.
How does this calculator work?
Pace (min/km) = total minutes ÷ distance (km). Enter your distance and finish time to get pace in mm:ss format, your equivalent speed in km/h or mph, and projected finish times for 5K, 10K, half-marathon and marathon at that effort level.
Formula
How this is calculated
Pace is the time it takes to cover one unit of distance — typically expressed in minutes and seconds per kilometre (min/km) or minutes and seconds per mile (min/mi). The calculation converts your total run time into minutes, then divides by the distance to get the decimal pace, which is formatted as mm:ss for readability.
Speed (km/h or mph) is the reciprocal view — distance divided by time in hours. The calculator also cross-converts your pace to the other unit (km ↔ miles) so you can compare with athletes using different conventions. The race projections assume you maintain the same effort all the way — in practice, fatigue, terrain and conditions will vary your actual finish time.
The XY chart shows distance on the horizontal axis and elapsed time on the vertical axis. At a constant pace the relationship is perfectly linear; the labelled dots mark 5K, 10K, half and full marathon milestones so you can read off finish times at a glance.
Frequently asked questions
A recreational 5K runner typically runs at 6–7 min/km (9:40–11:15 min/mi). Elite marathon runners hold about 2:49 min/km (4:33 min/mi). Your "good" pace depends on your experience, distance and goals — consistent improvement matters more than an absolute target.
Speed (km/h) = 60 ÷ pace (min/km). For example, a pace of 5:00 min/km equals 60 ÷ 5 = 12 km/h. To convert mph: Speed (mph) = 60 ÷ pace (min/mi). The calculator does both conversions automatically.
The projection assumes perfectly even splits at the entered pace. Real races involve warm-up, terrain changes, fuelling stops, fatigue and pacing strategy. Use the projection as a target range, not a guaranteed result.
Also known as
TG we-Calculate Editorial Team. (2026). Pace Calculator — Running & Walking Pace [Online calculator]. TG we-Calculate. https://we-calculate.com/calculator/pace-calculator
TG we-Calculate Editorial Team. "Pace Calculator — Running & Walking Pace." TG we-Calculate. 2026. https://we-calculate.com/calculator/pace-calculator.
TG we-Calculate Editorial Team, "Pace Calculator — Running & Walking Pace," TG we-Calculate, 2026. [Online]. Available: https://we-calculate.com/calculator/pace-calculator
@misc{wecalculate_pace_calculator, title = {Pace Calculator — Running & Walking Pace}, author = {{TG we-Calculate Editorial Team}}, howpublished = {\url{https://we-calculate.com/calculator/pace-calculator}}, year = {2026}, note = {TG we-Calculate} }
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