Question 1

What is the difference between BMR and TDEE?

Accepted Answer

BMR (basal metabolic rate) is the energy your body burns at complete rest to keep basic functions running. TDEE (total daily energy expenditure) is your BMR multiplied by an activity factor, so it reflects how many calories you actually burn in a typical day.

Question 2

Which formula does this calculator use?

Accepted Answer

It uses the Mifflin-St Jeor equation, which is widely regarded as one of the most accurate predictive formulas for resting metabolic rate in healthy adults.

Question 3

How do I choose the right activity level?

Accepted Answer

Pick the option that matches a typical week. Sedentary is little or no exercise, light is 1-3 days, moderate is 3-5 days, active is 6-7 days, and very active is hard daily training or a physical job.

Question 4

How many calories should I eat to lose weight?

Accepted Answer

A common starting point is eating about 500 kcal per day below your TDEE for roughly 0.5 kg of fat loss per week. The calculator shows this target automatically, but adjust based on real-world results.

Question 5

Is this calculator a substitute for medical advice?

Accepted Answer

No. The results are estimates for general guidance only and do not account for medical conditions, pregnancy, or individual differences. Consult a doctor or registered dietitian before making significant dietary changes.

Calorie & BMRCalculator

Calorie & BMR
Calculator