to swim 400 meters in a 25 METER pool, you must swim 16 lenghts, but to swim 400 meters in a 25 YARD pool, you must swim 17.5 lengths (so just swim 18 lengths)

If you are looking to race the mile, then it is 1500 meters or 60 lengths. If you are looking to simply swim a mile, then it is 1600 meters or 64 lengths.

to swim 800 meters in a 25 meter poll, you must swim 32 lengths, but to swim 800 YARDS, you only have to swim 29.26 lengths (so you should just swim 30 lenghts)

If you're talking statute miles and not nautical miles, you'll have to swim approx. 1,931 meters to go 1.2 miles. In nautical miles, the answer is closer to 2,223 meters.

The 800 medley relay is a race swim/run by a team of 4. The first leg will swim or run 100 meters. The next will swim/run 100 meters. The third will swim/run 200 meters. The last person will swim/run 400 meters. In total, 800 meters.

it depends on the length of the pool. if the pool is 25 meters, you have to swim 40 laps. For 50 meters, 20 laps. For 100 m, 10 laps. For 200 meters, 5 laps.

With a dive a good club swimmer can swim 25 meters in around 10 - 11 seconds. An average swimmer should bbe able to swim 25 meters in around 20 seconds