Cadence, stride length, and pace
These three numbers are locked together by one simple relationship: speed = cadence × step length. Fix any two and the third is determined. That is why you cannot change one in isolation — raise your cadence at the same pace and your steps must get shorter.
Enter the two you know above, choose what to solve for, and the calculator returns your pace, cadence, step length, and stride length in both metric and imperial units.
Step length vs stride length
The two terms are often confused. Step length is the distance between one foot landing and the other foot landing — a single step. Stride length is a full gait cycle: two steps, or the distance between successive landings of the same foot. Stride length is simply double the step length, and this calculator shows both.
Cadence is counted in steps per minute (both feet), so it pairs with step length in the speed equation.
What about 180 steps per minute?
The famous 180 spm figure comes from coach Jack Daniels counting the cadence of elite runners at the 1984 Olympics. It is a useful target, but not a universal law — taller runners with longer legs naturally run at slightly lower cadences, and everyone's cadence rises with pace.
If you tend to overstride (landing with your foot well ahead of your body), nudging cadence up by 5–10% while keeping the same pace shortens your steps, reduces braking and impact, and often feels smoother. Use the table below to see how cadence and step length trade off at a fixed pace.
| Cadence (spm) | Step length at 5:30/km | Stride length |
|---|---|---|
| 160 | 1.14 m (3.73 ft) | 2.27 m |
| 170 | 1.07 m (3.51 ft) | 2.14 m |
| 180 | 1.01 m (3.31 ft) | 2.02 m |
| 190 | 0.96 m (3.14 ft) | 1.91 m |
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The Running Genie reads your cadence and form metrics from your watch and helps you build the drills and workouts that improve them.
Frequently asked questions
What is running cadence?
Cadence is how many steps you take per minute (spm), counting both feet. Speed equals cadence multiplied by step length, so at a given pace a higher cadence means shorter, quicker steps. Many runners find that lifting cadence toward 170–180 spm reduces overstriding and impact.
What is the difference between step length and stride length?
Step length is the distance from one foot landing to the other — a single step. Stride length is usually one full gait cycle, which is two steps (the same foot landing twice). This calculator shows both: stride length is simply double the step length.
Is 180 steps per minute the ideal cadence?
180 spm became popular after coach Jack Daniels observed it in elite runners, but it is a guideline, not a rule. Optimal cadence varies with height, leg length, and pace. Most runners benefit from nudging cadence up 5–10% if they overstride, rather than forcing an exact number.
How do I calculate stride length from pace and cadence?
Convert your pace to speed in metres per minute, then divide by your cadence in steps per minute. For example, 5:00 per km is 200 metres per minute; at 180 spm that gives a step length of about 1.11 metres. This calculator handles the conversions for km, miles, metres, and feet.
Does increasing cadence make me faster?
Not directly — speed is cadence times step length, so raising cadence while shortening your steps keeps pace the same. The benefit is usually better form: a quicker cadence reduces overstriding, ground contact time, and braking forces, which can lower injury risk and improve efficiency.
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