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RUNNERS LAB

400m Split
Calculator

Pace and 200m split for a one-lap goal time.

Last reviewed 19 August 2026

A 70-second 400 is 2:55/km. The 200 m split on even running is 35 seconds. One lap of a standard outdoor track is 400.00 m in lane 1.

Target time

Enter the finish time you want to run.

Your pace

2:55 /KM

  • 4:42 /MI
  • 20.6 KM/H

Your splits

Split times to the finish
MarkerTime
200 m0:35
Finish1:10

A 1:10 400 metres requires an average pace of approximately 2:55/km.

What this result means

The 400 is the unit of track currency. This calculator turns a one-lap goal into kilometre pace and a 200 m split. The track lap calculator converts pace without locking a race clock; this page starts from a 400 m time.

400m repeats add rest and a session total. Use that when the workout is 8 × 400, not a single time trial.

70 seconds is 2:55/km. 60 seconds is 2:30/km. 80 seconds is 3:20/km. Even 200s are half the lap.

A 4:00 1600 m average is 60-second laps. This page is one lap only.

Calculation method

Pace = time ÷ 0.4 km. 200 m is half the time on even running. Rounding to the nearest second.

Exact arithmetic. Lane 1 outdoor 400 m.

Staggers and lane 8 make a real 400 different from lane 1. Indoor 200 m tracks are not this distance.

Full methodology →

Frequently asked questions

What pace is a 70-second 400?

About 2:55 per kilometre. The 200 m split is 35 seconds even.

How is this different from the track lap calculator?

That page converts pace ↔ lap and n laps. This page is a 400 m goal time with splits.

Is 400m one lap?

Yes, on a standard outdoor oval in lane 1.

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