Calculate
Choose a resting-energy formula
BMRThe reference page lets you choose a formula and then fills the result area. This version keeps the formula choice, resting estimate, and activity table live on one page.
Health directory
Open categoryThis calculator is part of the health section. Keep the current tool open for calculation, then use the related calculators below to compare nearby planning tasks.
Health calculator
BMR Calculator
Use a fuller BMR calculator when you want to compare resting-energy formulas and translate that baseline into realistic daily calorie context.
How to use this calculator
BMR calculator guide
Basal metabolic rate estimates the calories the body uses to maintain essential function at rest. That makes BMR the foundation beneath most calorie calculators. This page follows the reference calculator's idea of formula comparison, but keeps the selected formula, resting baseline, and activity table live in the same section.
- Use BMR for resting-energy context, then move to maintenance calories when your goal is eating, cutting, or gaining.
- Compare formulas rather than expecting every method to return exactly the same number.
- If you know body-fat percentage, Katch-McArdle can be a useful comparison because it reflects lean mass more directly.
Formula / method
Formula / method
This bmr calculator uses the existing ToolModule calculation model for the inputs shown above. The page keeps the original formulas and result logic intact, then presents the output in a clearer working layout.
- Start with the required inputs in the form above.
- The calculator applies the existing ToolModule calculation logic for this tool.
- Review the result cards, tables, and charts together before making a real-world decision.
Example calculation
Review the current live example
The example below reflects the current values shown in the calculator above, so it updates as you change the form without altering the calculation logic itself.
Example inputs
SexFemale
Age29
Height (cm)165
Weight (kg)60
BMR formulaMifflin-St Jeor
Example outputs
Basal metabolic rate1,325 kcal/day
Estimated weekly baseline9,277 kcal/week
Calories per hour at rest55 kcal/hour
Maintenance at selected activity2,054 kcal/day
Disclaimer
Use results as planning guidance only
Results are for reference only and do not constitute medical, nutrition, or clinical advice. Use professional guidance when a health or treatment decision is involved.
- Do not treat calculator output as financial, investment, medical, or legal advice.
- Check assumptions, dates, tax rules, and provider-specific terms before acting on a result.
- Use official documents or professional guidance when the decision has material consequences.
FAQ
Common BMR questions
What is the difference between BMR and TDEE?
BMR is resting energy use. Total daily energy expenditure adds movement, exercise, and general daily activity on top of that baseline.
Why do formulas give different BMR results?
Each formula was developed from different population data and assumptions, so small output differences are normal.
Why does this page use a live layout instead of a separate right-side result?
The reference design often separates inputs and final output. Here the chosen formula and activity table stay visible together for quicker comparison.