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BMR (Basal Metabolic Rate) Calculator

Calculate daily calorie baseline burn at complete rest (Mifflin-St Jeor).

Input Parameters

Calculation Results

Basal Metabolic Rate (BMR)
1,649kcal / day
Harris-Benedict Estimate
1,696kcal / day
Hourly Energy Expenditure
68.7kcal / hr
Summary: Your body burns approximately 1,649 calories per day at complete rest just to stay alive.
Step-by-Step Calculation Solution
1.Mifflin-St Jeor Equation: 10 × weight(kg) + 6.25 × height(cm) - 5 × age(yrs) + 5
2.Calculation: (10 × 70) + (6.25 × 175) - (5 × 30) + 5 = 1649 calories

Formula & How BMR (Basal Metabolic Rate) Calculator Works

Mathematical Formula
BMR (Men) = 10W + 6.25H - 5A + 5 | BMR (Women) = 10W + 6.25H - 5A - 161

Calculates the minimum energy required to sustain vital bodily functions at complete rest.

How to Calculate BMR (Basal Metabolic Rate) Calculator (Step-by-Step)
  1. Enter Biological Sex: Input your target parameter value.
  2. Enter Age (Years): Input your target parameter value.
  3. Enter Height (cm): Input your target parameter value.
  4. Enter Weight (kg): Input your target parameter value.
  5. Apply Formula: Calculate using BMR (Men) = 10W + 6.25H - 5A + 5 | BMR (Women) = 10W + 6.25H - 5A - 161.
  6. Review Results: View exact computed answers, metrics, and worked mathematical proofs.
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Frequently Asked Questions (FAQs)

How is BMR different from TDEE?

BMR is calories burned at total rest, while TDEE includes daily movement and exercise.

Official Regulatory & Government Data Sources

Authoritative Standards & Verified Reference Citations

Independent & Verified

Calculations and mathematical logic on this page are grounded in published statutory rules, regulatory standards, and official government data published by the following bodies:

Department of Health and Aged CareGovernment
Australian Government Health Agency

Australia's Physical Activity and Sedentary Behaviour Guidelines and dietary energy expenditure metrics.

www.health.gov.au
National Health and Medical Research Council (NHMRC)Government
Australian Government Medical Research Body

Nutrient Reference Values (NRVs) for Australia and New Zealand, macronutrient distribution, and hydration standards.

www.nhmrc.gov.au

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