BMR Calculator

Calculate your Basal Metabolic Rate (BMR) — the calories your body needs at rest — and your total daily energy expenditure (TDEE).

Runs in browser
BMR (kcal/day)
TDEE (kcal/day)
BMR (kcal/day)
TDEE (kcal/day)

Mifflin-St Jeor

= 10w + 6.25h − 5a + 5
= 10w + 6.25h − 5a − 161

Most accurate BMR formula for most adults.

How to use?

  1. 1
    Enter your detailsFill in weight, height, age and select gender.
  2. 2
    Choose activity levelSelect how active you are on average.
  3. 3
    Read the resultYour BMR (resting calories) and TDEE (total daily calories) are shown.

FAQ

What is BMR?
BMR (Basal Metabolic Rate) is the number of calories your body needs to maintain basic functions (breathing, circulation, etc.) at complete rest.
What is TDEE?
TDEE (Total Daily Energy Expenditure) is your BMR multiplied by an activity factor. It represents the total calories you burn per day including physical activity.
Which formula is used?
The Mifflin-St Jeor equation (1990) is used — it is the most accurate formula for most adults according to current research.

What Is BMR (Basal Metabolic Rate)?

BMR is the minimum number of calories your body needs to sustain vital functions (breathing, heartbeat, cell repair) while at complete rest. It accounts for 60–75% of total daily calorie burn.

Mifflin-St Jeor Formula

  • Men: BMR = 10 × weight(kg) + 6.25 × height(cm) − 5 × age + 5
  • Women: BMR = 10 × weight(kg) + 6.25 × height(cm) − 5 × age − 161

Why Does It Matter?

  • Setting a realistic calorie goal for weight loss or gain
  • Understanding your resting energy needs
  • Planning nutrition and diet programmes

How What Is BMR (Basal Metabolic Rate)? is calculated

Searches for What Is BMR (Basal Metabolic Rate)? usually come from people who need more than a quick number. They want to understand the method, the assumptions and how the result should be interpreted. A useful article explains the formula in plain language, shows the inputs that matter, and makes clear that the result is an estimate. This is especially important for health and finance pages, where a small difference in input can change the conclusion.

What to check before using the result

Check the date, amount, rate, unit or personal value you entered. If a local rule, tax bracket, medical reference range or legal limit applies, make sure the current regulation is being used. Online tools are helpful for planning and comparison, but they should not replace a qualified professional when the result affects medical care, contracts, loans, payroll, taxes or legal obligations.

Local search intent

People may search for “What Is BMR (Basal Metabolic Rate)? calculator”, “how to calculate What Is BMR (Basal Metabolic Rate)?”, “What Is BMR (Basal Metabolic Rate)? online” or “free What Is BMR (Basal Metabolic Rate)?”. The page should therefore answer the direct calculation first, then explain the background, examples, limitations and next steps. Keep a copy of important results and confirm them with official documents or professional advice when necessary.

Examples, assumptions and responsibility

High-intent searches need more explanation because the result may influence planning, money or wellbeing. Always note which assumptions are used: period, rate, tax rule, reference range, unit, personal value or date. Run at least one realistic example and compare it with your own records. If the result seems surprising, do not force the number to fit; review the input and ask a professional when the decision matters.

FAQ

Can this replace professional advice? No. It is an educational calculator. Why is the result an estimate? Online tools simplify real life rules and may not know every local exception. How should I save it? Keep the input values, date of calculation and output together, especially for finance and health planning.

How What Is BMR (Basal Metabolic Rate)? is calculated

Searches for What Is BMR (Basal Metabolic Rate)? usually come from people who need more than a quick number. They want to understand the method, the assumptions and how the result should be interpreted. A useful article explains the formula in plain language, shows the inputs that matter, and makes clear that the result is an estimate. This is especially important for health and finance pages, where a small difference in input can change the conclusion.

What to check before using the result

Check the date, amount, rate, unit or personal value you entered. If a local rule, tax bracket, medical reference range or legal limit applies, make sure the current regulation is being used. Online tools are helpful for planning and comparison, but they should not replace a qualified professional when the result affects medical care, contracts, loans, payroll, taxes or legal obligations.

Local search intent

People may search for “What Is BMR (Basal Metabolic Rate)? calculator”, “how to calculate What Is BMR (Basal Metabolic Rate)?”, “What Is BMR (Basal Metabolic Rate)? online” or “free What Is BMR (Basal Metabolic Rate)?”. The page should therefore answer the direct calculation first, then explain the background, examples, limitations and next steps. Keep a copy of important results and confirm them with official documents or professional advice when necessary.

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