Nutrition Calculators

Set calorie targets, understand daily energy balance, and connect weight trends to food planning — without app installs or accounts.

Nutrition tools

Calorie Calculator

Daily intake targets from goals and activity.

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TDEE Calculator

Energy out — foundation for deficit or surplus planning.

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BMR Calculator

Minimum energy at rest before meals and movement.

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BMI Calculator

Weight context alongside calorie planning.

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Common questions

How many calories should I eat?

Start with TDEE, then adjust ±300–500 kcal for loss or gain. Track weight for 2–3 weeks before large changes.

Are macro splits included?

Calcxzo focuses on total energy first. Use calorie targets as a base; add macro splits per your dietitian or coach.

Do I need an account?

No signup. Calculations run locally in your browser unless a tool notes otherwise.