olympic pool length is 50 meters. thus, 15 lengths would be 750 meters. finally, if you consider a lap a roundtrip, 7 1/2 laps would be .75 km. Keep in mind, many people mistakenly refer to 25 meter pools as olympic pools; just because someone is telling you it is so doesn't make it an olympic pool: they are rare.
In an Olympic Pool, 300 yards would be 6 laps.
32 laps
32 in a 50metere (Olympic pool)
Olympic pools are 50m, so 10 laps.
16 laps or 32 lengths if you were in a 50 meter Olympic size pool.
Approximately 4 laps
about 10
An Olympic pool is 50 metres long. So 400m would require 8 laps.
Olympic size pool is 8 lengths
10 lengths in an olympic size pool
there are 6.5 miles of swimming if you do 200 laps in a standard Olympic sized pool.
Someone said: "72 laps. In a regulation sized pool (25m) of course." But I think it's 72 laps in a 25 yard pool, and 66 laps in a 25 meter pool.