BMR Calculator

What is Basal Metabolic Rate (BMR)?

Knowing your BMR helps you make informed decisions about nutrition, exercise, and weight management. This calculator supports learning about metabolism and its role in health planning.

BMR Formula (Mifflin-St Jeor Equation)

  • For men: BMR = 10 × weight (kg) + 6.25 × height (cm) – 5 × age (y) + 5
  • For women: BMR = 10 × weight (kg) + 6.25 × height (cm) – 5 × age (y) – 161

Example Calculation

Suppose a 28-year-old woman is 165 cm tall and weighs 60 kg:

BMR = 10 × 60 + 6.25 × 165 – 5 × 28 – 161 = 600 + 1031.25 – 140 – 161 = 1330.25

FAQs

  • What is BMR used for?
    BMR is used to estimate your daily calorie needs and is the foundation for calculating Total Daily Energy Expenditure (TDEE).
  • How can I use my BMR for weight loss?
    To lose weight, consume fewer calories than your TDEE (BMR × activity factor).
  • Does BMR change with age?
    Yes, BMR generally decreases with age due to loss of muscle mass and hormonal changes.

BMR Calculator