Calorie Calculator

Calculate your estimated daily calorie needs based on your body measurements and activity level.

Your Estimated Daily Calories

Basal Metabolic Rate (BMR)
Maintenance Calories
Calories for Weight Loss
Calories for Weight Gain

What Is a Calorie Calculator?

A calorie calculator estimates how many calories your body may need each day. It uses information such as age, gender, weight, height, and physical activity.

What Is BMR?

Basal Metabolic Rate (BMR) is an estimate of the calories your body needs to perform basic functions while at rest.

What Are Maintenance Calories?

Maintenance calories are an estimate of the calories needed to maintain your current weight based on your activity level.

Important Note

These results are estimates and should not be considered medical advice. Individual calorie requirements can vary depending on many factors.

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What Is a Calorie Calculator?

A Calorie Calculator estimates how many calories you may need each day based on factors such as age, sex, height, weight and activity level. It can provide a useful starting point for understanding your estimated daily energy requirements.

How Does a Calorie Calculator Work?

A calorie calculator typically estimates your Basal Metabolic Rate (BMR) first and then considers your activity level to estimate your daily calorie needs.

Our calculator uses the Mifflin-St Jeor equation to estimate BMR and then applies an activity multiplier to estimate daily calorie requirements.

Calories and Activity Level

Your estimated calorie needs can vary depending on how active you are. Someone who exercises regularly may require more calories than someone with a mostly sedentary lifestyle.

Why Use a Calorie Calculator?

A calorie calculator can help you understand your approximate daily energy requirements when planning general nutrition or fitness goals. Depending on your goal, you may use the estimate as a starting point for maintaining, gaining or reducing body weight.

Calorie requirements are individual estimates and can change over time because of changes in activity, body composition and other factors.

Calorie Calculator FAQs

How many calories do I need per day?

Daily calorie needs vary from person to person. Age, sex, height, weight and activity level all influence estimated calorie requirements.

What is maintenance calorie intake?

Maintenance calorie intake is the estimated amount of energy needed to maintain your current body weight at a particular activity level.

Can a calorie calculator help with weight management?

It can provide an estimate that may be useful as a starting point for general weight-management planning. Actual results can vary between individuals.

Are calorie calculator results exact?

No. Calorie calculators provide estimates based on mathematical equations and the information entered. Your actual energy needs may be different.

Use our free Calorie Calculator above to estimate your daily calorie needs quickly and easily.