Your Tools

Period predictor

Knowing when your period is due each month can be really useful -
you can make a note of the dates in your diary to remind you to
pop a couple of tampons or sanitary towels in your bag and
have some painkillers to hand so the cramps don't catch you off guard.

To save you counting the days on a calendar to find out the likely start dates of your periods for the next 12 months, use our Period Predictor calculator to do the calculations for you.

Simply enter your details in the Period Predictor and click GO.

When did your your last period start?

How many days is your cycle?
days

How long does your period last?
days

Did you know?

Did you know...

Modern life has made a big difference to the number of
periods we have, mostly because women now eat more
and live longer...

Read more