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Free calorie calculator. Estimate daily caloric needs based on age, gender, height, weight, and activity level.
The calorie calculator estimates how many calories your body burns each day based on your age, sex, height, weight, and activity level. It uses the Mifflin-St Jeor equation, the standard for adult basal metabolic rate calculation.
People who want to lose, maintain, or gain weight use it to set realistic intake targets. It is also used by athletes managing performance fueling and by anyone simply curious about their personal energy needs.
It replaces vague calorie advice with a personalized number, so meal planning, macros, and deficits or surpluses can be set with intent. Without it, weight goals tend to drift because daily intake is being measured against the wrong baseline.
It answers questions like "How many calories should I eat in a day at my activity level?", "What is my maintenance number?", and "How does my daily burn change if I move from a desk job to lifting four times a week?"