Convert running or travel pace and speed between min/km, min/mile, km/h, mph, knots and m/s. Accept decimal pace or minutes:seconds with explicit units.
Reference: NIST length and speed definitions ↗. Results use the named definitions and the context you supply.
All calculations run locally in your browser. Your values are never uploaded and no input history is saved. Explicit units and assumptions make the result easier to check. No account or remote processing is needed.
Choose Minutes per kilometre, select Minutes:SS input, and enter 5:30. In decimal mode the equivalent is 5.5 min/km. A decimal 5.30 is not 5:30.
Zero speed can convert to another speed unit. It has no finite pace, so a pace target shows an error. Zero pace is also rejected because it implies unbounded speed.
No. This converts a constant speed or pace. Terrain, stops, fatigue and conditions are not modeled.
No. Calculations stay in this browser page and inputs are not persisted. Only the theme preference is saved. Copy and report download happen only when you choose.
