Pace is the time needed to complete a unit of distance. Running pace is commonly expressed as minutes per kilometer.

What is the difference between pace and speed?

Pace shows the time required for one kilometer, while speed shows kilometers traveled in one hour. As pace time decreases, speed increases.

How accurate are the finish-time estimates?

They assume your current pace remains constant. Actual times may differ, especially over longer distances, due to fatigue and course conditions.

Yes. It works for running, walking, or similar distance activities as long as you enter distance and duration.

Yes. Decimal distances such as 5.5 km are supported.

Calculate pace per kilometer, average speed, and race finish estimates from distance and duration.

Version 1.0 · Last Updated: August 6, 2026 · Maintained by ToolLarder