Math
Running Pace Calculator
Privacy Verified
Calculate your running pace per km and per mile, plus speed, from a distance and time. Includes splits for 5K, 10K, half and full marathon. Free, private, instant.
Privacy & Security
All processing happens locally in your browser — nothing is uploaded.
Data: None
Client-side-Side
Active
v1.0
How to Use
Enter your distance and finish time to get pace and speed, with race split estimates.
Disclaimer: This tool is provided "as is" without warranty of any kind. Results are for educational and utility purposes.
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