Running Pace Calculator
Your pace per mile and per kilometer from time and distance.
Input sheet
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Pace is the runner's core metric — minutes per mile or kilometer — and it's how you plan training, pace a race, and hit a goal time. This tool turns a time and distance into your pace and speed instantly.
How it works
Total time divided by distance gives minutes per mile; the kilometer pace and speed follow from there.
It divides total time by distance to get minutes per mile, then converts to a per-kilometer pace and an average speed in miles per hour. The decimal minutes are rendered as the familiar minutes-and-seconds format.
Use it both ways: enter a run you've done to find the pace you held, or work backward from a goal time and race distance to learn the pace you'll need to train for.
Pace (min/mile) = total time ÷ distance. Per-km pace = total time ÷ (distance × 1.609). Speed (mph) = distance ÷ (time ÷ 60).
Worked examples
Running a 10K (6.2 miles) in 50 minutes. → Pace about 8:04 /mile (5:01 /km), 7.4 mph.
50 ÷ 6.2 ≈ 8.06 min/mi → 8:04; 50 ÷ (6.2 × 1.609) ≈ 5.01 → 5:01/km.
Targeting a 4-hour marathon (26.2 miles). → Required pace about 9:10 /mile.
240 minutes ÷ 26.2 miles ≈ 9.16 min/mi → 9:10.
Tips & gotchas
- Train at varied paces — easy runs build your aerobic base while a smaller dose of faster work raises your ceiling.
- Account for terrain and heat; goal pace on a flat, cool day won't hold on hills or in summer.
- Negative-split races (second half slightly faster) usually beat going out too hard and fading.
- Convert your goal race pace into per-km splits if your watch or the course markers run in kilometers.
FAQ
What's a good pace for a beginner?
Pace varies enormously by fitness, so don't anchor to a number. A common new-runner range is 10-12 minutes per mile for easy efforts; the goal is finishing comfortably, then improving over weeks.
How do I use this to hit a race-time goal?
Enter your target finish time and the race distance to see the pace you'd need to hold the whole way. Then build training around that pace, allowing margin for hills and weather.
Why does my watch show a different pace?
GPS watches measure rolling pace that swings second to second and can wander on tight turns. This tool gives your true average pace over the full distance.
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