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Slow Run Fast

Cadence & Stride Length Calculator

Enter any two of pace, cadence, and stride length to solve for the third, then see how much shorter your stride would need to be to raise cadence at the same pace.

Solve for

1.18

One step (foot strike to foot strike on the opposite foot), not a full left-right-left stride cycle.

Cadence increase, same pace

CadenceStride length
170.01.18 m
178.5 (+5%)1.12 m
187.0 (+10%)1.07 m

This estimate uses a generic formula. Connect your Strava/Whoop/Garmin data for a version personalised to your actual training.

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The relationship

Running speed is cadence times stride length: how many steps you take per minute, multiplied by how far each step covers. Raise one without changing the other and your pace changes; raise cadence while shortening stride by the matching amount and your pace stays exactly where it was. This calculator solves for whichever one of pace, cadence, or stride length you do not already know.

About that "180" number

You will often see 180 steps per minute quoted as an ideal cadence. That number comes from Jack Daniels, who clocked elite racers at the 1984 Olympics and noticed most of them landed near 180, not from a controlled study showing it is optimal for every runner. There is no single universal target cadence: a taller runner with a longer stride can cover the same ground at a noticeably lower cadence than a shorter runner, at the exact same pace. Treat 180 as a data point from one group of elites, not a prescription.

Why raise cadence at all

Heiderscheit et al. (2011, Medicine & Science in Sports & Exercise) found that increasing step rate by 5 to 10% at a constant pace reduces loading at the hip and knee, by shortening the stride and reducing how far out in front of the body each foot lands. That is a real, measured effect, which is why this calculator shows the stride length a 5% and 10% cadence increase implies at your current pace, rather than pushing you toward 180 specifically.

Sources and limitations: see our methodology.

Worked example

Take a runner holding 5:00 /km at 170 steps per minute.

Speed works out to 200 m/min, so each step covers 1.18 m. Raising cadence by 10%, to 187 steps/min, at the exact same 5:00 /km pace, shortens each step to 1.07 m.

FAQ

Is 180 steps per minute the ideal running cadence?

No. 180 is Jack Daniels' observation of the typical cadence among elite racers he timed at the 1984 Olympics, not a controlled finding that 180 is optimal for everyone. Taller runners with a longer stride can hold the same pace at a meaningfully lower cadence. There is no single universal target.

Why would I want a higher cadence at the same pace?

Heiderscheit et al. (2011) found that raising step rate by 5 to 10% at a constant pace reduces loading at the hip and knee, mainly by shortening the stride and bringing the foot strike closer under the body. It is a form change, not a fitness change: your pace does not move.

What counts as one stride for this calculator?

One step: left foot strike to right foot strike, not a full left-right-left cycle. Cadence here is also counted as total steps per minute from both feet, the convention most running watches use, not steps from a single foot.

Can I use this to plan a cadence drill?

Yes. Solve for stride length at your current pace and cadence, then look at the +5% and +10% rows to see roughly how much shorter your stride needs to feel to hit that cadence without speeding up or slowing down.