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BMR Calculator (Mifflin St Jeor Equation)

Health
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Estimates the number of calories your body burns at rest to maintain basic functions.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Weight (kg), Height (cm), Age (years), and Gender in the units shown.

Step 2

Read Basal Metabolic Rate (BMR) in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

Example calculations

See the inputs and their calculated results.

30-year-old Male, 70kg, 175cm

Weight (kg): 70 kg; Height (cm): 175 cm; Age (years): 30 years; Gender: Male

Basal Metabolic Rate (BMR): 1,648.75 calories

25-year-old Female, 60kg, 165cm

Weight (kg): 60 kg; Height (cm): 165 cm; Age (years): 25 years; Gender: Female

Basal Metabolic Rate (BMR): 1,345.25 calories

40-year-old Male, 80kg, 180cm

Weight (kg): 80 kg; Height (cm): 180 cm; Age (years): 40 years; Gender: Male

Basal Metabolic Rate (BMR): 1,730 calories

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Important

Use the result as an estimate and confirm any medical decisions with a qualified professional.