Track Lap Calculator
Laps and distance on a running trackRuns locally · nothing uploaded
Convert
One lap in this lane
400 m
Laps needed
7 laps + 200 m
Laps
7.5
Lap length by lane (400 m track)
| Lane | Lap length | Extra vs lane 1 | Laps per km |
|---|---|---|---|
| Lane 1 | 400 m | — | 2.5 |
| Lane 2 | 407.04 m | +7.04 m | 2.46 |
| Lane 3 | 414.7 m | +14.7 m | 2.41 |
| Lane 4 | 422.37 m | +22.37 m | 2.37 |
| Lane 5 | 430.03 m | +30.03 m | 2.33 |
| Lane 6 | 437.7 m | +37.7 m | 2.28 |
| Lane 7 | 445.36 m | +45.36 m | 2.25 |
| Lane 8 | 453.03 m | +53.03 m | 2.21 |
Also works as:how many laps is a mile400m track lane distancelaps for 5klane 8 distance
How it works
Formula
Lane 1 = 400 m (measured 0.30 m from the kerb)Lane n = 400 + 2π × [(n − 1) × 1.22 + 0.20 − 0.30] mLanes are 1.22 m wide; lanes 2+ are measured 0.20 m from the inner line.
Worked example
Given: 3000 m in lane 2
- Lane 2 = 400 + 2π × 1.12 ≈ 407.04 m.
- 3000 ÷ 407.04 ≈ 7.37 laps.
Result: Just over 7 laps; running 7.5 laps would add about 53 m.
Sources
- World Athletics Track and Field Facilities Manual
How to use
- 1Choose the track length and, on a 400 m track, your lane.
- 2Enter a distance or a number of laps.
- 3Optionally enter a target pace to get the time per lap.
FAQ
How long is a lap in outer lanes?
Only lane 1 is 400 m. Lane 2 is about 407.04 m and lane 8 about 453.03 m; each lane out adds about 7.67 m.
How many laps is a mile?
About 4.02 laps in lane 1 (1609.34 m).
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