Health & nutrition calculators

Free, science-based tools to estimate your calories, macros, and more — then put the numbers to work by tracking your meals with Caltrac.

Calorie / TDEE calculator

Find your daily calorie needs (TDEE) and a target for your goal.

Estimate your resting energy expenditure (basal metabolic rate).

Turn your calorie target into daily protein, carbs, and fat.

Check your Body Mass Index and weight category.