Pace Calculator
Quickly find your Running pace with our free Pace Calculator. Simple, fast, and accurate.
Run details
Result
What is a Pace Calculator?
A Pace Calculator helps runners find their running pace (time per kilometer or mile) from distance and total time. It also converts pace to speed and can predict finish times for any race distance. It is an essential tool for training plans, race strategy, and tracking improvement over time.
How to calculate pace manually (the formula)
The formula is: Pace = Total Time ÷ Distance. Convert total time to minutes (e.g., 1 hour 30 minutes = 90 minutes), then divide by distance. For 90 minutes over 15 km: 90 ÷ 15 = 6:00 per km. To get seconds, multiply the decimal by 60.
Example calculation
You run 10 km in 50 minutes. Pace = 50 min ÷ 10 km = 5:00 per km. Speed = 60 ÷ 5.0 = 12 km/h. For a marathon (42.195 km) at this pace: finish time = 5:00 × 42.195 = 211 minutes = 3 hours 31 minutes.
Common mistakes
- Mixing units — If you enter distance in km but think in miles (or vice versa), the pace will be wrong. Use the calculator’s built-in mile option or convert first.
- Forgetting to convert seconds — When calculating manually, 5.5 minutes is 5:30, not 5:50. Multiply the decimal by 60 to get seconds.
- Using elapsed time instead of moving time — If you stopped for traffic lights or water breaks, use your actual moving time for accurate pace.
- Confusing pace and speed — A faster runner has a lower pace number. 4:00/km is faster than 6:00/km, but 15 km/h is faster than 10 km/h.
Frequently asked questions
How do I calculate running pace?
Running pace is calculated by dividing total time by distance. Pace = Time ÷ Distance. For example, 50 minutes for 10 km gives a pace of 5:00 per km. Enter your distance and total time and the calculator does the rest.
What is a good running pace?
A good running pace depends on your fitness level and goals. Beginner joggers typically run 6:30–8:00 per km, intermediate runners 5:00–6:00 per km, and advanced runners under 4:30 per km. Use the pace calculator to find your current pace and track improvements.
How do I convert pace to speed?
Speed (km/h) = 60 ÷ pace in minutes per km. A pace of 5:00/km equals 60 ÷ 5.0 = 12 km/h. The calculator shows both pace and speed so you can use whichever metric you prefer.
Can I predict my race time with this calculator?
Yes. Enter your target pace and a distance (e.g., 5 km, 10 km, half marathon, marathon) and the calculator will show your estimated finish time. Use the compare feature to save different pace scenarios.
What is the difference between pace and speed?
Pace measures time per unit distance (min/km or min/mile) and is commonly used by runners. Speed measures distance per unit time (km/h or mph) and is commonly used by drivers. Pace is more practical for running because it relates directly to effort.
How accurate is the pace calculator?
The calculator is mathematically exact. Results depend entirely on the accuracy of your distance and time inputs. For best results, measure your route distance accurately with GPS and time yourself precisely.