🏃 Fitness Tool
Pace Calculator
Calculate your running pace, speed, or finish time. Enter any two values to find the third — perfect for race planning and training.
Pace Calculator
Enter any two values and leave one blank to calculate it.
Pace
--
min/km
Speed
--
km/h
Finish Time
--
h:mm:ss
| Race | Distance | Good Pace |
|---|---|---|
| 5K | 5 km | 5:00–7:00 /km |
| 10K | 10 km | 5:30–7:30 /km |
| Half Marathon | 21.1 km | 6:00–8:00 /km |
| Marathon | 42.2 km | 6:30–8:30 /km |
How to Use the Pace Calculator
The Pace Calculator works with three variables: Distance, Pace, and Time. Enter any two and the tool calculates the third automatically.
Pace (min/km) = Time (minutes) ÷ Distance (km)
Speed (km/h) = Distance (km) ÷ Time (hours)
Finish Time = Pace × Distance
Speed (km/h) = Distance (km) ÷ Time (hours)
Finish Time = Pace × Distance
Common Race Distances
- 5K: 5 kilometres — great for beginners
- 10K: 10 kilometres — popular recreational distance
- Half Marathon: 21.0975 km
- Marathon: 42.195 km
Frequently Asked Questions
What is a good running pace for beginners?
For beginners, a comfortable pace of 7–9 minutes per km (11–15 min/mile) is perfectly normal. Focus on completing the distance comfortably rather than speed. Speed improves naturally with consistent training.
How do I improve my running pace?
Effective methods include interval training (alternating fast and slow segments), tempo runs (sustained effort at a challenging pace), increasing weekly mileage gradually (10% rule), and strength training to improve running economy.
What is negative split running?
A negative split means running the second half of a race faster than the first half. This strategy is used by elite runners to conserve energy early and finish strong. It requires excellent pace judgment and race experience.