Free BMR Calculator for Women 2026
Calculate your Basal Metabolic Rate (BMR) as a woman. The Mifflin-St Jeor formula for women: BMR = (10 × weight kg) + (6.25 × height cm) − (5 × age) − 161. For a 28-year-old woman weighing 65kg at 165cm, BMR ≈ 1,449 calories/day. Women generally have lower BMRs than men of the same weight because women typically have higher body fat percentages and less metabolically active muscle mass. No sign-up required — your data never leaves your browser. Works instantly on desktop, tablet, and mobile. Completely free with no daily usage limits, no watermarks, and no account needed. Trusted by students, professionals, and businesses worldwide. FixFlowHub is a browser-based toolbox with 120+ free utilities covering PDF, image, text, calculator, and productivity tools.
Frequently Asked Questions
What is the average BMR for a woman?
The average BMR for adult women ranges from 1,300 to 1,700 calories per day. A 30-year-old woman weighing 60kg at 165cm has a BMR of approximately 1,413 calories/day. Women's BMR is typically 5-10% lower than men's at the same weight.
Does BMR change during pregnancy?
Yes, BMR increases significantly during pregnancy. In the first trimester, BMR increases by about 5-10%. By the third trimester, BMR can increase by 20-25% above pre-pregnancy levels to support fetal growth and increased maternal metabolism. Consult your doctor for nutritional guidance during pregnancy.