Calorie Calculator
Estimate daily calorie needs for your activity level and goal.
Recommended next steps
Related tools
Estimate total daily energy expenditure from BMR and activity.
Estimate basal metabolic rate using the Mifflin-St Jeor formula.
Compute daily protein, carb, and fat targets from your calorie goal.
Frequently asked questions
It uses Mifflin-St Jeor for BMR (10 × weight + 6.25 × height − 5 × age, +5 male / −161 female), multiplies by an activity factor for TDEE, and applies a ±500 kcal goal adjustment.
Sedentary 1.2, light 1.375, moderate 1.55, active 1.725, and very active 1.9. These are the standard population multipliers — they are approximations, not personal calibrations.
A 500 kcal daily delta is the most commonly cited rule of thumb for roughly half a kilogram of weight change per week. Real-world results depend on individual response and adherence.
Last updated 2026-06-03.