How Long After Sex Can A Sperm Stay Alive Inside A Woman's Body?

If kept warm at body temperature (like on the skin or in a warm test tube), they remain motile for several hours. Inside the female reproductive tract, they can live for up to 7 days. They are very sensitive to temperature and moisture and will eventually die outside the body, but since each ejaculate may contain as many as 750 million little tadpoles, and it only takes one "tadpole" to result in pregnancy, precautions are essential. .

I am a medical assistant.  I have heard up to a few days.  However, as soon as it hits the air it dies right away.  Sperm don't live outside the body for very long. 

Hi everyone.
I have a question, I am trying to get pregnant.
I am 31 and my boyfriend is 59.
How can I keep his sperm inside me for that long?

I read that it's stays for 60 hours or 48 I don't remember

It stays in a body fives to eight days

It is having essential food for its survival for 8 days but can live upto 2 days only within the female Fallopian tube and if it does not get fertilized witin  those days it dies

3 to 4 weeks

About 3-6 days

Three(3) days or 72 hrs...
This is FESTUS from TANZANIA.

I have heard that it is about five to eight days and it can't hit air or it will die right away

A sperm can stay alive inside a woman's body for days until they dry up inside her.

It is alway's alive ,but to avoid pregency you has take a pill within 72 hours after sex

It can live up to six days inside of a woman's body, possibly seven.

[Website for reference: Here.]

The overwhelming majority (upwards of 85-95%) < less than 60 minutes
BUT 5-10% live 24-72 hours (from a very healthy male and the proper conditions in a woman's body), and sperm pushing records would fall short of 6 days, as 5 days is the longest known.

It depends on a ton of factors - 1/3 from the male + 1/3 from female and the other third from items/events/etc we cannot measure or aren't aware of.