Skip to content
Medias MaratonesEspaña
es

Tools

Running Track Lane Calculator

How far is one lap in lane 2, 4 or 8? Convert laps to distance and distance to laps on a standard 400 m running track, lane by lane.

Lane

Total distance

–

One lap in this lane

–

400 m track: distance per lap by lane

LaneMetreskmMilesFeet2 laps (800 m)
Lane 1400.00.400.251,312800.0
Lane 2407.70.410.251,337815.3
Lane 3415.30.420.261,363830.7
Lane 4423.00.420.261,388846.0
Lane 5430.70.430.271,413861.3
Lane 6438.30.440.271,438876.7
Lane 7446.00.450.281,463892.0
Lane 8453.70.450.281,488907.3
Runna: 2 weeks free. Personalised running plans for 5K, 10K, half marathon and marathon. Start free.
Advertising · affiliate link

How the track lane calculator works

A standard 400 m track is measured along lane 1. Every lane further out follows a wider curve, so one lap gets longer as you move outwards. The calculator uses the World Athletics standard lane width of 1.22 m. Each lane adds about 7.67 m per lap (2 × π × 1.22 m), because the extra distance comes only from the two bends.

  • Laps → distance: choose a lane and the number of laps to see the total distance you actually run.
  • Distance → laps: enter a target distance (in km or m) to see how many laps you need in that lane.

Why lanes matter for your training

The difference looks small until you add it up:

  • Lane 2: about 407.7 m per lap, so 10 laps is roughly 77 m extra.
  • Lane 4: about 423 m per lap, so a “1.6 km” session of 4 laps is actually almost 1.7 km.
  • Lane 8: about 453.7 m per lap, nearly 54 m more than lane 1 on every lap.

If you do intervals in an outer lane, your pace per km will look slower than it really is. That’s why track races use staggered starts: runners in outer lanes start further ahead so everyone covers the same distance.

Tips for track sessions

  • Easy recoveries in the outer lanes keep lane 1 free for faster runners. Just remember you’re covering more ground.
  • Doing reps in lane 2 or 3? Use the calculator to correct your target split. For example, a 90 s 400 m in lane 1 is about 91.7 s in lane 2 at the same pace.
  • Converting a road plan to the track: 5 km is 12.5 laps in lane 1, but only about 11.8 laps in lane 4.
  • Track etiquette: faster runners use the inside lanes. Pass on the outside, and don’t stop in lane 1.

Frequently asked questions

Is lane 1 exactly 400 m? Yes. It’s measured 30 cm from the inner kerb, which is the line a runner actually follows.

Why is the difference the same between every pair of lanes? Because only the bends differ. The two bends together make a full circle, and each lane widens that circle’s radius by 1.22 m.

What about indoor 200 m tracks? Indoor tracks have banked bends and different geometry, so this calculator is for standard outdoor 400 m tracks only.