A woman with sunglasses hanging out of car window smiling

Plan for your vacation, or just next week, in 3 easy steps with our Period Calculator. 


When was the first day of your last period?


How long did it last?


How long is your menstrual cycle?

This tool is not intended to be medical advice and should not be used to prevent pregnancy. Results are an estimate and will vary for each women.

Which Product is Right for Me?

No matter what time of the month it is, U by Kotex® has something that's right for you.
U by Kotex® teen® pads, extra absorbency
Teen® Pads - Extra Absorbency

Check out  these smaller-sized pad with heavy-flow absorbency. U by Kotex Teen® Pads are totally perfect for your younger girls learning the ropes and have vibrant colors with cool patterns. 

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U by Kotex® CleanWear® Ultra Thin pads with wings, heavy flow
Cleanwear® Ultra Thin Pads - Heavy Flow With Wings

Say hello to your new favorite pad for heavy flow days. U by Kotex® Cleanwear® Pads feature Xpress DRI® Core for crazy, fast absorption to help stop leaks.

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U by Kotex® Click® Compact tampons, super
Click® Tampons Super - Compact Applicator

Go from compact to full-sized protection in one quick move with U by Kotex® Click® Tampons. Perfect for travel and pocket-sized, to go where U go!

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U by Kotex® Security® Ultra Thin pads with wings, heavy flow
Security® Ultra Thin Pads - Long with Wings

This super-thin pad has some crazy fast absorption that you can trust. And with its added length and uniquely shaped wings. It'll keep you comfortable while helping stop leaks dead their in tracks.

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Get Tips & Advice

Check out these period articles that others have found helpful.
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Which Absorbency is Right For Me?

Your period lasts for  3-7 days on average, but that doesn't mean that menstrual blood is flowing freely the entire time!

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How to Prepare for Your First Period

Getting your first period can be exciting, nerve-wracking and confusing all at once.

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Everything You Need to Know about Swimming on Your Period

Summer's finally here, and many of us are looking forward to splashing in some form of H2O to have fun while beating the heat.

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How to be Period Positive

Empowering others through your actions can be change the way you and those around you view menstruation. 

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