Periods Calculator
Predict your next menstrual cycles up to 6 months in advance with ovulation day forecasts.
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Quick Summary: Periods Calculator
The average Indian menstrual cycle is 28-30 days. In FY 2026-27, our tracker helps you predict future start dates and ovulation windows up to 6 months in advance to manage health and travel plans.
How to use the Periods Calculator
- 1
Input Last Start Date
Select the date your last period began.
- 2
Specify Cycle Length
Enter the average number of days between your periods.
- 3
View Forecast
See your predicted start dates for the next 6 months and any historical irregularities.