In more detail
The Mifflin-St Jeor equation gives 1,780 kcal a day for a 30-year-old man of 80 kg and 180 cm. It is multiplied by an activity factor to get TDEE. See How Calorie Needs Are Calculated.
Glossary
Health & Fitness
BMR (basal metabolic rate)
BMR is the energy your body burns at complete rest to keep you alive, estimated from weight, height, age and sex.
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See also
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Glossary
TDEE
TDEE is total daily energy expenditure: the calories you burn in a day including movement, found by multiplying BMR by an activity factor.
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Glossary
BMI (body mass index)
BMI is body weight in kilograms divided by height in metres squared, a screening number for whether weight is in a healthy range.
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Guide
How Calorie Needs Are Calculated
BMR, TDEE and calorie targets explained with one worked example: three BMR equations, activity factors, the 7,700 kcal rule.