Menopause Age Predictor Calculator
Menopause Age Estimator
Estimate when menopause may begin based on key factors
Formula
Estimated Age = 51 (base) adjusted by: Family History, Smoking (-1 to -2), BMI, Age at Menarche | Perimenopause Start ≈ Menopause Age - 4 years
Frequently Asked Questions
What is the average age of menopause?
The average age of natural menopause in the US is 51 years. The normal range is 45-55 years. Menopause before age 40 is considered premature ovarian insufficiency, and before 45 is considered early menopause.
What are the first signs of perimenopause?
Common early signs include: irregular periods (shorter, longer, heavier, or lighter), hot flashes, night sweats, sleep disturbances, mood changes, vaginal dryness, and decreased libido. Perimenopause typically begins 4-8 years before menopause.
What factors affect when menopause starts?
Key factors include: genetics/family history (strongest predictor), smoking (lowers age by 1-2 years), BMI (very low BMI may cause earlier menopause), ethnicity, history of chemotherapy or radiation, surgical removal of ovaries, and certain autoimmune conditions.
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