Men ejaculate millions and millions of sperms during intercourse. But only one lucky one gets to unite with the egg and fertilise it to produce a baby. But that’s not the only interesting thing about sperms! Did you know sperms can also live outside the body for some time? If you are wondering how long sperm can survive outside, we got you the exact figure from sexologist V. Raina. Take note as it can help you avoid pregnancy. For how long do sperms live outside the body? Sperm can save life indefinitely when frozen for artificial insemination or in vitro fertilisation.