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Pace calculator
Calculate running pace and speed from distance and elapsed time.
Numbers and dates
Text
Browser only
Runs locally in your browser. Your files, pasted content and generated output are not uploaded. Reset clears this tool’s working data.
This tool needs JavaScript. If it does not load, refresh the page and try again.
How to use this tool
- Enter values using decimal points and choose the operation or assumptions shown.
- Select Calculate and review the numerical result and its stated conventions.
- Download the result or amortization schedule when available. Reset restores the example inputs.
Examples
5 kilometres in 25 minutes gives 5:00 per kilometre and 12 km/h.
Limitations
- Runs locally. Decimal calculations use floating-point arithmetic, rounded to 12 significant digits; monetary displays use two decimals. Exact integer and fraction results are labelled separately.
- Positive distances from 1e-6 to 1e6 km or miles. Duration up to 9999:59:59.999; pace output is rounded to milliseconds. This is distance/time arithmetic, not a fitness prescription.
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