TotalBMR Calculator
Your BMR is the energy your body uses just to keep you alive: breathing, circulation and cell repair, with no activity at all. It is the starting point for any calorie target.
How it works
This uses the Mifflin-St Jeor equation, which is generally more accurate for modern populations than the older Harris-Benedict formula.
This is a general estimate for healthy adults, not medical advice. Formulas cannot account for body composition, medical conditions or medication. Talk to a doctor or dietitian before making significant changes.