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Calorie Calculator

Calculate daily calorie needs to maintain, lose, or gain weight based on activity.

Enter inputs on the left to see results.
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How to Calculate & Use the Calorie Calculator

Master your diet and reach your body composition goals with our free calorie calculator. By factoring in your age, gender, weight, height, and daily physical activity level, this tool estimates your daily maintenance calories. It also maps out custom caloric deficits for weight loss and surpluses for muscle gain, along with recommended macronutrient splits.

Input & Variable Breakdown:

  • Gender: Bounded variable used in the formulas.
  • Age (Years): Bounded variable used in the formulas.
  • Weight (kg): Bounded variable used in the formulas.
  • Height (cm): Bounded variable used in the formulas.
  • Activity Level: Bounded variable used in the formulas.

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Frequently Asked Questions

How many calories should I eat to lose weight?

To lose weight safely, you need to create a caloric deficit. Consuming 500 calories below your daily maintenance calories (TDEE) typically results in a weight loss of about 1 pound (0.45 kg) per week.

What are macronutrients and how should I split them?

Macronutrients are carbohydrates, proteins, and fats. A standard balanced split is 40% carbs, 30% protein, and 30% fat, which can be adjusted based on physical activity levels and goals.

What activity level multiplier should I select?

Select the multiplier that matches your lifestyle: Sedentary (1.2), Lightly active (1.375), Moderately active (1.55), or Very active (1.725).