How it is calculated
The Mifflin–St Jeor formula: 10 × weight + 6,25 × height − 5 × age, then +5 for men and −161 for women. Weight is in kilograms, height in centimetres.
Men: 10W + 6,25H − 5A + 5
Where the numbers come from
- Sex
- Weight — unit in the field: kg
- Height — unit in the field: cm
- Age — unit in the field: years
Example
A man of 30, 80 kg, 180 cm. BMR = 10×80 + 6,25×180 − 5×30 + 5 = 1 780 kcal.
Questions
Is this a full day's food target?
No. That figure is at rest. Even an office day multiplies BMR by about 1,2. Open the daily-expenditure calculator.
Does the formula suit teenagers?
It was checked on adults. The calculator asks for an age of 15 or more, and it is still a rough estimate.
Do I need a body-fat percent?
Not with this formula. Formulas that use fat mass are closer for very muscular people and for very heavy people, but they need a measurement.