Men: (10 × weight) + (6.25 × height) – (5 × age) + 5
Women: (10 × weight) + (6.25 × height) – (5 × age) – 161
The Mifflin St Jeor Equation Calculator helps estimate your Basal Metabolic Rate (BMR) using the trusted Mifflin-St Jeor equation.
About the Equation
Developed in 1990, this formula is widely accepted in nutrition science and often preferred over the Harris-Benedict equation.
Inputs Required
- Gender
- Age
- Weight
- Height
- Activity Level
Calculation Logic
Men:
BMR = (10 × weight) + (6.25 × height) − (5 × age) + 5
Women:
BMR = (10 × weight) + (6.25 × height) − (5 × age) − 161
Multiply BMR by activity factor for TDEE.
Example
Male, 40 years, 85 kg, 180 cm, sedentary:
BMR = 1790 calories
TDEE = 1790 × 1.2 = 2148 calories
Benefits
- Accurate estimation
- Trusted formula
- Easy to use
- Supports health goals
FAQs
- What is this calculator for?
Estimating daily calories. - Is it scientific?
Yes. - Does it include activity?
Yes. - Is it free?
Yes. - Who should use it?
Adults. - Is it better than Harris-Benedict?
Often yes. - Can it help weight loss?
Yes. - Is it instant?
Yes. - Does age affect BMR?
Yes. - Does weight matter?
Yes. - Is height required?
Yes. - Can I use lbs?
Yes. - Is it accurate for athletes?
Reasonably. - Does it measure fat?
No. - Can elderly use it?
Yes. - Is it safe?
Yes. - Does pregnancy affect needs?
Yes. - Should I recalc after weight loss?
Yes. - What is TDEE?
Total daily burn. - Is it reliable?
Yes.
Conclusion
The Mifflin St Jeor Equation Calculator offers a dependable method for estimating calorie requirements using one of the most trusted metabolic formulas available. It is ideal for anyone seeking structured nutrition planning and better control over calorie intake. By delivering fast and accurate results, it empowers users to make informed decisions about diet, weight management, and overall health.