👩 Calculators for Women

Estimate breast cancer risk using age, family history, reproductive factors, previous breast biopsies and atypical hyperplasia.

Estimate your fertile window and likely ovulation date using the first day of your last menstrual period and your average menstrual cycle length.

Calculate your estimated next menstrual period date using the first day of your last period and your average menstrual cycle length.

Find your estimated body shape using bust, waist and hip measurements. Identify whether your proportions are closest to hourglass, pear, rectangle, inverted triangle or apple.

Find your bra size — band and cup, such as 34B — from your underbust and bust measurements in cm or inches, with UK/India, US, EU, French and Australian sizes, sister sizes and a snug-fit option.

Estimate bikini top, bottom and overall size from bust, waist and hip measurements using meters, centimeters, inches or feet.