Pace Calculator
Calculate your running pace, speed, or finish time. Enter any two values and the third is computed automatically.
Pace (min/km)
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Speed
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Finish Time
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Pace (min/mi)
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Race Split Times
Enter distance and time above to see race splits.
How to Use the Pace Calculator
- Choose your unit system: Select Metric (km) or Imperial (mi).
- Enter a distance: Type a custom distance or select a preset (5K, 10K, half marathon, marathon).
- Enter your time: Fill in hours, minutes, and seconds.
- View your results: Pace, speed, finish time, and race splits appear instantly.
Pace Formula
- Pace: Time (minutes) / Distance
- Speed: Distance / Time (hours)
- Finish Time: Pace x Distance
Common Race Distances
| Race | Distance (km) | Distance (mi) |
|---|---|---|
| 5K | 5.0 | 3.107 |
| 10K | 10.0 | 6.214 |
| Half Marathon | 21.0975 | 13.109 |
| Marathon | 42.195 | 26.219 |
Frequently Asked Questions
What is a good running pace?
This varies greatly by age, fitness level, and experience. For recreational runners, a 5:30-6:30 min/km (8:50-10:30 min/mi) pace is common. Competitive runners often run sub-4:30 min/km (7:15 min/mi). Focus on your own improvement rather than comparing to others.
How can I improve my running pace?
Incorporate interval training (alternating fast and slow running), tempo runs (sustained effort at a comfortably hard pace), and long slow runs. Consistency, proper rest, and gradual mileage increases are key. Aim to increase weekly distance by no more than 10%.
Should I run at a consistent pace?
For most races, even pacing (or slightly negative splits — running the second half faster) is optimal. Starting too fast is the most common mistake. Use this calculator to plan your target pace and practice maintaining it during training runs.