Ovu

Ovulation Calculator

Estimate ovulation and fertile window from LMP.

S'exécute dans votre navigateur — les données ne quittent pas votre appareil

Calendar-method estimate: ovulation ≈ LMP + (cycle − luteal). Not for contraception.

Last menstrual period

Cycle length (days)

Luteal days

Ovulation date: 2026-07-15
Fertile window: 2026-07-10 .. 2026-07-16
Next period: 2026-07-29
Cycle length: 28 days
Luteal days: 14
LMP: 2026-07-01

Educational estimate only — not medical advice, diagnosis, or contraception guidance. Consult a clinician for fertility or health decisions.

À propos de Ovulation Calculator

Calendar-method ovulation estimate. Everything runs in your browser. ⚠️ Not medical advice, diagnosis, or contraception guidance.

For contraception?

No. Estimate only — consult a clinician.

Uploaded?

No.