Question 1

What is BMR?

Accepted Answer

Basal Metabolic Rate is the calories your body needs at rest to sustain vital functions.

Question 2

Which BMR formula is best?

Accepted Answer

Mifflin–St Jeor is widely used for modern populations; Harris–Benedict (revised) and Katch–McArdle (uses body fat %) are alternatives.

Question 3

How do I get daily calories from BMR?

Accepted Answer

Multiply BMR by an activity factor to get TDEE (Total Daily Energy Expenditure); adjust for weight loss/gain goals.

Question 4

Does age affect BMR?

Accepted Answer

Yes—BMR typically decreases with age due to changes in lean mass and hormones.

Question 5

Is BMR the same as RMR?

Accepted Answer

They’re similar; RMR is usually measured less strictly and tends to be slightly higher than BMR.

BMR Calculator