How to calculate running pace
Running pace is total time divided by distance. A 25-minute 5K is 5:00 per kilometer, or about 8:03 per mile. RunSplit does the unit conversion and rounds the displayed pace to the nearest second.
RunSplit
Running Pace Calculator
Find your pace, predict a finish time, or build race splits in miles or kilometers.
Miles or kilometers. No account. Nothing saved.
Your average pace
5:00 /km
Speed7.46 mph
Metric speed12.00 km/h
Adjust this pace
At this pace
Equivalent race times
If you could hold this pace for the full distance:
Goal pace
What pace do I need?
You need8:03 /mi5:00 /km7.46 mph · 12.00 km/h
Race plan
Build cumulative splits
9:09 /mi5:41 /km
| Checkpoint | Cumulative time |
|---|
Compare two pacesSee what a few seconds per mile or kilometer changes.
Pace A8:03 /mi
Pace A finish3:31:00
Pace B finish3:42:52
Difference11:52
Pace per mile vs. pace per kilometer
U.S. runners commonly track minutes per mile. International races and many training plans use minutes per kilometer. Switch units above and the same pace is converted automatically.
Common race distances
- 1 Mile
- 1.609344 km
- 5K
- 3.107 mi
- 10K
- 6.214 mi
- Half Marathon
- 13.109 mi
- Marathon
- 26.219 mi
5K goal pace examples
- 20:00
- 6:26/mi · 4:00/km
- 25:00
- 8:03/mi · 5:00/km
- 30:00
- 9:39/mi · 6:00/km
Marathon goal pace examples
3:006:52/mi · 4:16/km3:308:01/mi · 4:59/km4:009:09/mi · 5:41/km4:3010:18/mi · 6:24/km5:0011:27/mi · 7:07/km
Straight answers
Running pace questions
What is a good running pace?
A good pace depends on your experience, distance, goal, age, conditions, and current fitness. A sustainable pace for one runner may be too fast or too slow for another. RunSplit handles the math; it does not prescribe training.
How do I calculate my running pace?
Divide your total running time by the distance covered. For example, 50 minutes divided by 10 kilometers is 5:00 per kilometer.
How fast is an 8-minute mile?
An 8:00 mile pace is 7.5 mph, about 12.1 km/h, or approximately 4:58 per kilometer.
What pace do I need for a 25-minute 5K?
You need to average about 8:03 per mile or exactly 5:00 per kilometer.
What pace is a 2-hour half marathon?
You need to average about 9:09 per mile or 5:41 per kilometer.
What pace is a 4-hour marathon?
You need to average about 9:09 per mile or 5:41 per kilometer.
How do I convert mile pace to kilometer pace?
Divide seconds per mile by 1.609344 to get seconds per kilometer. The unit switch in RunSplit does this automatically.
How accurate is a race pace calculator?
The arithmetic is precise, but the equivalent finish times assume you can hold the same average pace for the entire distance. Weather, terrain, fatigue, stops, and training affect real results.