Calorie Calculator
Use this calorie calculator to estimate how many calories your body needs per day. Enter your age, gender, height, weight, activity level, and goal to calculate your BMR, daily calorie needs, BMI, and suggested calories for weight loss, maintenance, or muscle gain.
Calculate Your Daily Calories
What Is a Calorie Calculator?
A calorie calculator is a simple tool that estimates how much energy your body needs each day. It uses your body details and activity level to calculate your Basal Metabolic Rate and Total Daily Energy Expenditure.
This helps you understand whether you should eat fewer calories, maintain your current intake, or increase calories for muscle growth.
What This Tool Calculates
- Daily maintenance calories based on your activity level.
- BMR, which is the energy your body uses at rest.
- BMI to give a basic weight category estimate.
- Suggested calorie targets for weight loss and muscle gain.
- Basic protein, carbohydrate, and fat macro guidance.
How It Works
The calculator uses the popular Mifflin-St Jeor equation to estimate BMR. After that, it multiplies your BMR by your selected activity level to estimate your daily calorie needs.
Calorie Goal Guide
- For weight loss, the tool creates a moderate calorie deficit.
- For maintenance, it shows your estimated daily energy balance.
- For muscle gain, it adds a controlled calorie surplus.
- For best results, combine calories with good sleep, strength training, and balanced meals.
Why Daily Calories Matter
Calories are the basic unit of energy your body gets from food and drinks. When you eat more calories than your body uses, weight gain can happen over time. When you eat fewer calories than your body uses, your body may start using stored energy, which can support weight loss.
However, calorie quality also matters. A professional calorie plan should include enough protein, fiber, vitamins, minerals, and healthy fats. This calculator gives you a strong starting point, but your daily habits decide the real outcome.