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Calculator Answers

Pace Calculator

Blake Boege
Written by Blake Boege · Founder, Calculator Answers

Pace is a rate of movement defined as the time required to cover a specific unit of distance, commonly expressed as minutes per mile or minutes per kilometer. A pace calculator solves the relationship between distance, time, and pace, allowing users to calculate any of these three variables when the other two are known. It includes preset distances for common athletic events such as five-kilometer runs, ten-kilometer runs, half marathons, and marathons. Athletes and coaches use these calculations to plan training, set race goals, and monitor athletic performance.

Pick what to solve for, then enter any two of distance, time, and pace. The calculator returns the missing value plus speed in mph and km/h. Presets for 5K, 10K, half marathon, and marathon.

Quick Answer

Calculate your running or walking pace, duration, or distance. Enter any two variables to solve for the third.

Solve for

Race / distance preset

Unit

hh:mm:ss, mm:ss, or seconds. · e.g. 25:00 or 1:42:30

Pace result

Pace

8:03 /mi • 5:00 /km

Distance5 km
Time25:00
Pace /mi8:03 /mi
Pace /km5:00 /km
Speed7.46 mph • 12 km/h

Pace is reported per mile and per kilometer for direct comparison with race-day signage. Speed (mph and km/h) is the inverse view of the same number.

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Examples

5K in 25:00

8:03 /mi · 5:00 /km

Half marathon at 5:41 /km

≈ 1:59:55 finish

10K at 6:00 /mi

≈ 37:17 finish

60 minutes at 7:30 /mi

≈ 8.0 miles

How it works

Pace, time, and distance are three quantities tied by one relationship. Given any two, the third is determined.

Pace · pace = time / distance

Time · time = pace × distance

Distance · distance = time / pace

Speed = 60 / pace (min/mi → mph) or 60 / pace (min/km → km/h).

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Frequently asked questions

Pace is time divided by distance, the inverse of speed. Runners and walkers usually express pace in minutes per mile or minutes per kilometer; a 9:00 /mi pace means it takes 9 minutes to cover one mile.

Speed is distance divided by time. Convert pace (min/mi) to mph by dividing 60 by the pace in decimal minutes. The calculator does this automatically and shows mph and km/h alongside the pace.

Roughly 9:09 /mi or 5:41 /km. Use the 'Time from distance + pace' mode with the Half preset to confirm. Race-day pace varies with terrain, weather, and pacing strategy.

Easy pace is roughly 60 to 75 seconds slower per mile than your 5K race pace. It is the pace at which you can hold a conversation. This calculator handles the math; pace targets come from your training plan.

Type hh:mm:ss (e.g. 1:42:30), mm:ss (e.g. 25:00), or just seconds. The calculator parses any of the three.

The math works for any sport. Pace is just time / distance. For cycling, mph or km/h are more conventional; the speed-converter is a better fit for sustained efforts.