BMR Calculator

Basal metabolic rate (Mifflin–St Jeor).

Units

Sex

Age (years)

years

Weight (kg)

Weight (lb)

Height (cm)

Height (ft)

Height (in)

Activity

Frequently asked questions

What does the BMR Calculator do?

Basal metabolic rate (Mifflin–St Jeor). Enter your values and get an instant estimate in your browser — free, with no signup.

Is the BMR Calculator free to use?

Yes. OpenCalcy calculators are free to use, work on mobile, and keep favorites privately in your browser.