Calorie Needs Calculator

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Calorie Needs Calculator

Instantly calculate your daily calorie needs (TDEE) and Basal Metabolic Rate (BMR). Free, accurate tool for weight loss, maintenance, or muscle gain.

🍎 Nutrition Tool
Instant Analysis
🎓 Mifflin-St Jeor
📱 Mobile Friendly

Calculate Your Daily Calories

Enter your biometric data and activity level to get an instant, personalised evaluation of your Basal Metabolic Rate (BMR) and Total Daily Energy Expenditure (TDEE).

Biometric Details

Enter your stats to calculate your personalised calorie targets

👤 Input Variables
Choose the option that best describes your typical weekly physical activity.

Calorie Evaluation

Calculated metabolic rates and targets

Activity Level Multipliers

Standard activity multipliers used in the TDEE calculation to help you understand how your lifestyle impacts your daily calorie burn.

Activity Level Multiplier Description Example
Sedentary× 1.2Desk job, little to no intentional exerciseOffice worker, minimal walking
Lightly Active× 1.375Light exercise or sports 1-3 days a weekWalking, light yoga, casual cycling
Moderately Active× 1.55Moderate exercise or sports 3-5 days a weekRegular gym sessions, jogging, swimming
Very Active× 1.725Hard exercise or sports 6-7 days a weekIntense weightlifting, daily running
Extra Active× 1.9Very hard exercise, physical job, or training twice a dayProfessional athlete, construction worker
⚠️ Important Note: These calculations provide an estimate. Individual metabolism varies based on genetics, muscle mass, and hormonal factors. Use this as a starting point and adjust your intake based on real-world results over 2-4 weeks.

Calorie Needs FAQ

Everything you need to know about TDEE, BMR, and managing your daily calorie intake.

TDEE stands for Total Daily Energy Expenditure. It is the total number of calories your body burns in a single day, accounting for your Basal Metabolic Rate (BMR) and your physical activity level.

BMR (Basal Metabolic Rate) is the number of calories your body needs to perform basic, life-sustaining functions at complete rest (like breathing, circulation, and cell production). TDEE is your BMR multiplied by an activity factor, representing your total daily calorie burn.

A safe and sustainable rate of weight loss is typically achieved by consuming 300 to 500 calories less than your TDEE per day. This generally results in a healthy weight loss of about 0.5 to 1 pound (0.2 to 0.5 kg) per week.

Yes, the Mifflin-St Jeor equation is widely considered by dietitians and health professionals to be the most accurate formula for estimating BMR in healthy individuals, though it may slightly underestimate calorie needs for individuals with very high muscle mass.

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