👩 BMR Calculator for Women — Free Online Calculator
Calculate your bmr calculator for women using 3 formulas: Mifflin-St Jeor, Harris-Benedict, and Katch-McArdle. Get TDEE for all activity levels.
Frequently Asked Questions — BMR Calculator
What is BMR (Basal Metabolic Rate)?+
BMR is the number of calories your body needs at complete rest to maintain basic functions: breathing, circulation, cell production, and temperature regulation. It accounts for 60–75% of total daily calorie expenditure.
What is the Mifflin-St Jeor formula?+
The most widely recommended BMR formula: Male: (10 × weight kg) + (6.25 × height cm) − (5 × age) + 5. Female: (10 × weight kg) + (6.25 × height cm) − (5 × age) − 161. It is more accurate than Harris-Benedict for most adults.
How does BMR change with age?+
BMR decreases approximately 1–2% per decade after age 20. This is mainly due to loss of lean muscle mass. Regular strength training can slow or partially reverse this decline.