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BMR calculator

Estimate resting energy with Mifflin–St Jeor (ages 19–78). Not a clinical measurement of basal metabolism. Not for pregnancy, breastfeeding or medical conditions.

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Set your data

Set your data

Result

Enter your data and run the tool. Your result will appear here.

The values you enter stay on this page. Reloading or closing it clears them.

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How to use the tool

  1. Fill in these fields: Weight (kg), Height (cm), Age (19–78 years), Original equation coefficient.
  2. Select “Calculate” to obtain the result.

Method and principles

Formula

REE = 10 × m + 6.25 × h − 5 × a + k
REE = 10 × kg + 6.25 × cm − 5 × y + c; c = +5 / −161

Practical example

Input
  • Weight (kg): 70
  • Height (cm): 175
  • Age (19–78 years): 30
  • Original equation coefficient: +5 · male
Result
1,648.75 kcal/24 h

Limits and checks

Limits and checks
ParameterValue
Weight (kg)≥ 30; ≤ 350
Height (cm)≥ 100; ≤ 250
Age (19–78 years)≥ 19; ≤ 78

Sources and further reading

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Calorie needs

Indicative energy estimate: Mifflin–St Jeor × chosen PAL (1.4–2.4), for healthy adults 19–78. Not a diet prescription; excludes pregnancy, breastfeeding and medical conditions.

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Calculate average pace per km and mile and speed from distance and time. Projections assume constant pace and do not predict performance or endurance.

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