There are a lot of variables to this question. Some people who have been properly trained to swim could easily finish 750 meters in 15 or 20 minutes. I could not find a world record, but if one did exist it would have to be around the 8 to 10 minute mark. The 400 meter freestyle record is just over 4 minutes. A novice who swims, but is not very fast could practice with his/her endurance and complete 750 meters in 25 or 30 minutes without much problem. Hope this helps.
3.68
Very long. It is about 466 miles!
In an olympic size pool, that is 15 lengths
About five minutes at the average human walking speed of 9km/h
For the Youth F1 Triathlon the swimming distance is 250-400 meters, and for the Elite Developmental Race it is 750 meters
750 meters is 0.75km
750 metres = 2,460.63 feet
750 square meters = 0.185 acres.
Answer: 750 m = 2,460.629 feet.
Which is the same to say that 750 meters is 0.46602839 miles.
750 meters = About 1/2 mile (0.466028394 miles)
There are 7.5 meters in 750 centimeters. 750 centimeters x 0.01 meters/1 centimeter = 7.5 meters 1 centimeter = 0.01 meters