What Is Ovulation Calculator?
Not contraception advice.
How to Use Ovulation Calculator
Enter LMP and average cycle length.
How Does Ovulation Calculator Work?
Not contraception advice.
Formula
Ovulation ≈ cycle − 14
Important Notes
Results depend on the inputs and assumptions shown on this page. Construction and finance figures are estimates. Islamic calendar conversions follow a documented algorithm and may differ from local moon sighting. Health-related tools are informational only.