This stride length calculator links running’s three dials — pace, cadence and stride length: give it any two and it computes the third, because speed = stride × cadence.

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Speed = Stride × Cadence — Only Two Dials Exist

Every pace improvement is longer strides, quicker steps, or both — the arithmetic admits no third option. Pace itself converts on our Pace Calculator. Part of our Sports Calculators collection.

Worked Example (Verified)

  • 5:00/km at 180 spm (defaults): speed 3.333 m/s ÷ 3 steps/s = stride 1.11 m (step 0.56 m) — textbook efficient distance-running geometry
  • The trade-off menu for 4:30/km at the same body: either 180 spm × 1.23 m stride, or 190 spm × 1.17 m — same speed, different loading patterns; athletes differ in which dial turns easier
  • Walking reality-check: 6:00/km… walking at 120 spm and 0.75 m steps = 1.5 m/s = 11:06/km — stride math exposes why “power walking” speeds demand race-walk technique
  • Height heuristic: stride ≈ 0.65–0.75 × height at distance pace for many runners (1.11 m ≈ 0.65 × 171 cm) — a sanity band, not a target; elites exceed it via hip extension and air time

Form Implications

  • Overstriding (foot landing far ahead of the center of mass) brakes every step — cadence nudges (+5%) fix it more safely than stride cues.
  • Vertical oscillation and ground-contact time hide inside these two dials: bouncy strides waste the vertical budget.
  • Hills rewrite both numbers (shorter stride uphill at held cadence) — compare like terrain to like.
  • Watches estimate stride from cadence + GPS speed — the same formula run backwards; discrepancies usually trace to GPS pace smoothing.

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Frequently Asked Questions

How do you calculate stride length?

Stride = speed ÷ cadence (in steps per second). At 5:00/km (3.333 m/s) and 180 spm (3/s): 3.333 ÷ 3 = 1.11 m per stride. Note the terminology trap: a stride is two steps (same foot to same foot); step length is half the stride. This calculator reports both.

What is a good running cadence?

Elites cluster near 180 spm at race pace; recreational runners often sit 160–175. The “180 is ideal” lore overgeneralizes one study’s elite sample — the evidence-based nudge is +5–10% above your natural cadence if you overstride or battle shin/knee issues, not a universal number.

How can I increase my stride length safely?

Mostly indirectly: strength and plyometrics (hip extension power), drills, and speed work lengthen stride as fitness grows — reaching forward with the foot instead adds braking and injury risk. Speed = stride × cadence means a 5% gain on either dial is identical pace; train the one that responds.

Is stride length proportional to height?

Loosely: leg length sets the comfortable envelope (distance-pace strides often run ≈ 0.65–0.75 × height), but two runners of equal height can differ 20% via turnover and mechanics. Height explains the neighborhood; training picks the address.

Why does my watch’s stride length differ from this?

Watches compute stride from their own pace (GPS or accelerometer) and cadence estimates, with smoothing and sometimes a step/stride terminology swap — a systematic 2× discrepancy means it’s reporting step length. The formula is identical; the inputs and labels differ.

Is this stride length calculator free?

Yes — free, instant, no sign-up.