Health and Fitness
BMR Calculator
Estimate basal metabolic rate using age, sex setting, height, and weight.
Result
--What does this calculator do?
Estimate basal metabolic rate using age, sex setting, height, and weight.
Formula
Mifflin-St Jeor estimates resting calorie needs.
Example calculation
A 30-year-old 170 lb, 70 in male estimates around 1,700 kcal/day BMR.
Common use cases
- Nutrition planning
- Fitness estimates
- Maintenance calorie context
Limitations and accuracy notes
This calculator is for quick planning and education. Results depend on your inputs and may not include every real-world rule, fee, tax, health factor, or local requirement.
BMR Calculator FAQ
Is this calculator free?
Yes. It gives quick estimates directly in your browser.
Should I use this as professional advice?
No. Use it as a planning aid and confirm important decisions with a qualified professional.