Running pace calculator
Solve running pace, finish time, or distance in miles or kilometers.
What this calculator covers
Use this running pace calculator to solve the missing side of the time-distance-pace triangle.
You can compute pace from time and distance, finish time from pace and distance, or distance from pace and time while keeping both mile and kilometer pace visible.
Frequently asked questions
- What is running pace?
- Running pace is the time it takes to cover one unit of distance — typically expressed as minutes and seconds per mile or per kilometer. It is the inverse of speed: a faster runner has a lower (smaller) pace number.
- How do I calculate my pace from a race finish time?
- Select the "pace from time and distance" mode, enter your race distance and your finish time, and the calculator returns your average pace per mile and per kilometer. This is useful for reviewing a completed run or setting a goal pace for a future race.
- What is the difference between pace per mile and pace per kilometer?
- They measure the same effort expressed in different distance units. A pace of 8:00 per mile is roughly equivalent to 4:58 per kilometer. The calculator shows both so you can cross-check workouts, treadmill displays, and race courses regardless of which unit they use.
- Does this assume a constant pace?
- Yes. The calculation assumes you maintain the same pace for the entire distance. Real runs involve variation, so the result represents an average across the effort rather than a prediction of split-by-split performance.
Tool
Run the calculation
Result
RESULT · RUN
â„–223
Primary result
8:00 /mi
Covering 5.00 mi in 40:00 works out to 8:00 /mi. That also converts to 8:00 /mi and 4:58 /km.
- Distance
- 5.00 mi
- Finish time
- 40:00
- Pace per mile
- 8:00 /mi
- Pace per kilometer
- 4:58 /km
Step-by-step solution
- 1.Use the selected mode to solve the missing piece: pace from time + distance, finish time from pace + distance, or distance from pace + time.
- 2.Work in the selected mile-based pace first, then convert the solved effort to 8:00 /mi and 4:58 /km.
- 3.Read the final pairing of distance 5.00 mi, finish time 40:00, and selected pace 8:00 /mi.
Walkthrough
Visual walkthrough
Running pace math is just the distance-time triangle solved in different directions, with each mode holding one edge constant.
01
Choose the unknown to solve
pace-from-time
The calculator can solve pace, total time, or distance depending on which two pieces you enter.
02
Solve in the selected distance unit
5.00 mi · 40:00 · 8:00 /mi
The base calculation stays in miles or kilometers first so the headline pace matches the selected training unit.
03
Cross-check the converted pace
Displaying both per-mile and per-kilometer pace makes it easier to compare workouts across watch, treadmill, and race formats.
8:00 /mi · 4:58 /km