Race Pace Conversion Chart

How the chart works

Pick a speed row and read across: the same effort shown as km/h and mph, as pace per kilometre and per mile, and as finish times for common distances. Every time assumes a steady speed with no fade, so the numbers are clean pacing targets rather than race predictions.

The speed axis starts at an easy walk and steps up in bigger jumps through the walk and jog range, then in fine 0.1 steps through the running range so you can land on the exact treadmill setting you need.

Everything the chart does

• Switch which unit leadsPut km/h first for European treadmills and road running, or miles first for US treadmills that read in mph. The leading column, and the pace columns, reorder to match.
• Turn race columns on or offShow only the distances you care about. Enable or disable 5K, 10K, half marathon, marathon, and the HYROX run total independently, or show and hide them all at once.
• Variable-step speed axisBigger steps cover walking and easy jogging at the low end, then fine 0.1 steps run through race pace, matching how treadmills increment.
• Sticky speed column and horizontal scrollThe speed column stays pinned on the left while the pace and race-time columns scroll sideways, so you never lose track of which row you are reading.
• HYROX run splits built inA dedicated HYROX column shows two times at your pace: the 8 one-kilometre run legs on top (8km of running), and the roxzone transitions on their own below, about 0.7km of extra movement across the race.

When to use it

• Set your treadmill to hit a target 10K or marathon pace without doing the mental maths.
• Convert a goal race pace into miles per hour on a US gym treadmill.
• Plan your HYROX run legs and know what 8km of running should cost you.
• Translate paces between km and miles when you travel or race abroad.
• Find sensible easy-run and long-run speeds by reading off the slower rows.

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