Free Tool
Running Pace Calculator | Running
Running Pace Calculator - Pace = Time / Distance
Built by an engineer who chases finish lines and is obsessed with data. Thomas Prommer — technology executive who has worked with Google, Apple, Nike, Adidas, Netflix and other global brands. Also an Ironman finisher, HYROX Pro Division competitor, and marathon runner. These tools combine engineering rigor with real race experience.
Running Pace Calculator
Pace = Time / Distance.
Methodology
Pace = Time / Distance. Speed = Distance / Time. Converts between min/km, min/mi, km/h, and mph. Standard race distances: 5K, 10K, Half Marathon (21.0975 km), Marathon (42.195 km).
FAQ
How does this calculator work?
Pace = Time / Distance. Speed = Distance / Time. Converts between min/km, min/mi, km/h, and mph. Standard race distances: 5K, 10K, Half Marathon (21.0975 km), Marathon (42.195 km).
What units are supported?
km, miles, min/km, min/mi, km/h, mph. Toggle between metric and imperial.
How accurate is this?
Mathematically exact for pace/speed/time conversions. Real-world performance varies with conditions.
Can I use this for race planning?
Yes, use the split times and pace bands for race day execution strategy.