Pace Calculator
Enter any two of distance, time and pace — get the third, plus race splits at every standard distance. Built for runners: 5K, 10K, half and marathon presets included.
| Race | Distance | Predicted time at this pace |
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Frequently asked questions
What is running pace?
Pace is the time it takes to cover a fixed distance — usually expressed as minutes per mile or minutes per kilometer. It’s the inverse of speed: a 5:00/km pace equals 12 km/h. Runners use pace instead of speed because it directly maps to race splits and training zones.
What pace do I need to run a 4-hour marathon?
A marathon is 26.2 miles (42.195 km). To finish in 4 hours you need roughly 9:09 per mile or 5:41 per kilometer. Enter 26.2 miles and 4:00:00 above to see the exact splits — and remember to account for course profile and crowds in the first miles.
What are typical pace benchmarks?
Rough recreational benchmarks: beginner 5K ~9:00–11:00 per mile, intermediate ~7:30–8:30, competitive runners under 6:30. For daily easy runs, most coaches recommend 1.5–2 minutes per mile slower than your 5K race pace. Speed feels impressive; consistency builds fitness.