Running Pace & Kilometer Splits Calculator
Compute target pace per km/mile and split times for races.
Tool inputs stay in your browser · optional AI search sends your query
Good to know: Computes average running pace and splits for 5K, 10K, half marathon and marathon endurance races.
How to use it (step by step)
- 1Fill in the boxes: “Race Event / Distance”, “Target Hours”, “Target Minutes”, “Target Seconds”. Example numbers are already there so you can see how it works; replace them with yours.
- 2The result updates instantly as you type (on a phone it is below the boxes).
- 3The bold line is the main answer. Tap Copy next to any value to copy it.
Words to know
- Pace / speed
- Speed = distance per hour (km/h). Pace = time per distance (minutes per km), common in running.
- Average (mean) / median
- Average = add everything and divide by how many. Median = the middle value when sorted; it is not pulled by extreme values.
- Time card / hours
- Adding up hours worked (minus breaks) to calculate pay. Overtime is time beyond normal hours, often paid at a higher rate.
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