Ladies Period Predictor Calculator
The girls can also calculate the most fertility time period with this calculator. So this way they can have birth planning.
Please select the first day of your last menstrual period:
Predicted Next Date Will Be:
How to Estimate Your Next Period
A cycle runs from the first day of one period to the first day of the next. Add your usual cycle length to the first day of your last period to estimate the next start.
For example, August 20 plus a 28-day cycle gives September 17. The optional luteal-phase value is used only for the separate ovulation estimate; it does not shorten your cycle.
Cycle timing varies. These are calendar estimates, not confirmed ovulation dates or a method of contraception.
See the Office on Women's Health menstrual-cycle guide for the cycle definition and reasons timing changes.
Periods and Fertility Calculator for Females:
This simple calculator calculates the average next menstrual period and best fertility time of females. Still, this can only give you an idea. For accurate results, you must consult a doctor.
This calculator provides estimated dates for the next periods and fertility periods for females. Never consider these results as final; this calculation may vary from female to female, so be careful when considering this calculator for any accurate results and medical examination.