Formula
LMP + n × cycle
Period Calculator
Project upcoming period start dates.
Period Calculator
Informational only — not medical advice. Results are estimates. Consult a qualified clinician for health decisions.
How it works
Cycles can change month to month.
How to use
Enter LMP and cycle length.
Frequently Asked Questions
What is Period Calculator?+
Forecast upcoming periods.
How do I use Period Calculator on Pedzah?+
Enter LMP and cycle length.
Related searches
Common searches related to Period Calculator.
- Period calculator
- Next period predictor
- Menstrual cycle calculator
- Period tracker calculator
- When is my next period
Related health calculators
- BMI CalculatorBody Mass Index from height and weight.
- Calorie CalculatorDaily calorie targets from BMR and activity.
- Body Fat CalculatorUS Navy circumference body-fat estimate.
- BMR CalculatorBasal metabolic rate (Mifflin-St Jeor).
- Ideal Body Weight CalculatorEstimate ideal body weight from height and sex using Robinson, Miller, Devine, and Hamwi formulas.