BMR calculator
Your basal metabolic rate is the calories your body burns at complete rest. It is the foundation your daily calorie target is built on. This uses the Mifflin-St Jeor equation, the same maths the forme app uses.
BMR calculator
Sex
Age
Height
Weight
YOUR BMR
1,749 kcal / day
This is what your body burns at complete rest, just to keep you alive. Add daily movement and exercise on top to get your TDEE, the figure you actually eat against.
From BMR to a real plan
forme turns this into a daily calorie and macro target for your goal, then tracks it for you from a scan.
What is BMR?
Basal metabolic rate is the energy your body uses just to keep you alive at rest: breathing, circulation, brain function, keeping warm. It is the biggest single chunk of the calories you burn each day, usually 60 to 70 percent.
BMR vs TDEE
BMR is rest only. Your TDEE (total daily energy expenditure) is BMR plus everything you do: moving, digesting, exercising. You eat against your TDEE, not your BMR, so once you have your BMR, run the TDEE calculator to get the number that actually drives your plan.
Common questions
- What is the difference between BMR and TDEE?
- BMR is the calories you burn at complete rest. TDEE is your BMR multiplied by an activity factor to include movement, digestion and exercise. TDEE is the figure you eat against; BMR is the starting point.
- How is BMR calculated?
- This tool uses the Mifflin-St Jeor equation: 10 x weight(kg) + 6.25 x height(cm) - 5 x age, then +5 for men or -161 for women. It is the most accurate widely used formula for most people.
- Can I eat at my BMR to lose weight?
- It is usually too low and hard to sustain, and risks muscle loss. Base your deficit on your TDEE instead, eating roughly 300 to 500 calories below it. This is guidance, not medical advice.