Period Calculator

Use our period calculator to find out the date of the start of your next expected menstrual cycle.

Enter the date of the start of your last menstrual cycle:

Month Day Year
Enter average length of cycle


Other articles you may like

Breast Self Exam
Learn how to perform a breast self exam

Endometriosis
Endometriosis occurs when there is endometrial tissue outside of the endometrial cavity.

Overactive Bladder
Overactive bladder, also known as urge incontinence, occurs in women more than men.