Pace Calculator
Find your running pace, finish time or distance, with a simple splits table for your race.
Results
| Item | Value |
|---|
Splits
| Distance | Time |
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Quick Answer
Pace equals time divided by distance. For example, running 5 km in 25 minutes is a pace of 5:00 per kilometer, or about 8:03 per mile. To find finish time, multiply pace by distance: 10:00 per mile for 26.2 miles takes 4 hours 22 minutes.
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Table of Contents
How This Pace Calculator Works
Pace tells you how long it takes to cover one kilometer or mile. Enter any two of distance, time and pace, and the calculator works out the third. It also shows your speed and an even-pace splits table.
Quick explanation: Pace = time ÷ distance.
- Find pace: enter a distance and a time.
- Find finish time: enter a distance and a pace.
- Find distance: enter a time and a pace.
Core Formulas
- Pace: time ÷ distance
- Finish time: pace × distance
- Distance: time ÷ pace
- Speed (km/h): 3,600 ÷ seconds per kilometer
One mile is 1.609344 kilometers. A half marathon is 21.0975 km, and a marathon is 42.195 km.
Worked Example
You want to run a 10K in 50 minutes.
- Pace = 50:00 ÷ 10 km = 5:00 per kilometer
- Pace per mile = 5:00 × 1.609344 = about 8:03
- Speed = 12 km/h, or about 7.46 mph
Using Your Pace
- Start steady: going out too fast often costs time later.
- Allow for hills and weather: these can slow your pace on race day.
- Check distance: GPS watches can differ a little from a measured course.
- Train gradually: build up over time, and speak to a doctor if you are new to exercise.
Frequently Asked Questions
Divide your time by your distance. For example, 30 minutes for 5 km is a pace of 6:00 per kilometer.
About 5:41 per kilometer, or about 9:09 per mile, at an even pace.
Divide pace per mile by 1.609344. To go the other way, multiply by 1.609344.
Pace is time per distance, such as 5:00 per km. Speed is distance per time, such as 12 km/h.
A half marathon is 21.0975 km, or about 13.1 miles.
References & Sources
| Source | Used For | Link |
|---|---|---|
| Wikipedia, Mile | Exact mile to kilometer conversion. | https://en.wikipedia.org/wiki/Mile |
| Wikipedia, Marathon | Standard marathon distance. | https://en.wikipedia.org/wiki/Marathon |
| Wikipedia, Half marathon | Standard half marathon distance. | https://en.wikipedia.org/wiki/Half_marathon |