400m
A standard running track has 400 m in one lap. The 800 m race is therefore 2 laps of the track.
400m in lane 1
On a standard outdoor athletics track of 400m: 1200m / 400m = 3 laps. Indoor athletics tracks can be 200m in which case 1200m / 200m = 6 laps.
Depends on the track. If it is a standard 400 meter track, it will be eight laps. If it is indoors it will be about thirteen.
Exactly 2.5 laps on a 400m track and 2.49 laps for a 440 yards track.
A standard running track is 400m.
A lap is not a regulation measurement. It can be almost any distance.
On a 400m track - 200m, 400m, 800m, 4x100m, 4x400m (and other non-Olympic distance relays)
Always in meters. Some children's races are ran in a measurement of feet. However, all adult and professional tracks and races are measured in meters. A standard track is 400m.
On an Olympic size track (400 meters), 25 laps = 10000 meters.
25 laps if the track is a standard 400m long.