Running Pace: Calculate Splits and Predict Race Times
Pace is the runner's core metric — minutes per kilometre or mile. Master it and you can plan training, pace races evenly, and predict finish times.
Here's how pace, speed, and distance connect, with a chart of finish times at a steady pace.
The formula
Pace = time ÷ distance; finish time = pace × distance. Speed (km/h) = 60 ÷ pace (min/km).
Even vs negative splits
Beginners benefit from even pacing; experienced runners often run a slight negative split, speeding up in the second half.
From training to racing
Use recent race results to set realistic goal paces rather than guessing — overreaching early is the classic mistake.
Related calculators
Frequently asked questions
How do I convert pace to speed?
Divide 60 by your pace in min/km to get km/h (e.g. 60 ÷ 5 = 12 km/h).
Can pace predict my marathon?
Shorter race results give good estimates, but heat, terrain, and training depth all matter.
This tool provides educational information and is not intended to replace professional medical advice.