Calorie Calculator
InternetAiTools.com · BMR · TDEE · Weight Loss/Gain Goals
Your Details
Gender
Male
Female
25 yrs
170 cm
70 kg
Your Calorie Results
BMI: --
BMR (Base)
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TDEE (Maintain)
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⚡ Extreme Loss
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📉 Weight Loss
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✅ Maintain
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📈 Weight Gain
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💪 Muscle Gain
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🔥 Free Calorie Calculator for Weight Management
Calculate your daily calorie needs with our free calorie calculator based on the Mifflin-St Jeor equation - the most accurate BMR formula according to scientific research. Get your Basal Metabolic Rate (BMR - calories burned at complete rest) and Total Daily Energy Expenditure (TDEE - calories burned with daily activities). Adjust for your activity level from sedentary to extra active to get personalized calorie targets for extreme weight loss, moderate weight loss, maintenance, weight gain, and muscle building. Perfect for fitness planning, weight management, and achieving your health goals. No registration, no data storage - complete privacy guaranteed.
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Frequently Asked Questions
What is BMR and how is it calculated?
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BMR (Basal Metabolic Rate) is the number of calories your body burns at complete rest. It is calculated using the Mifflin-St Jeor equation: For men: (10 × weight in kg) + (6.25 × height in cm) - (5 × age) + 5. For women: (10 × weight in kg) + (6.25 × height in cm) - (5 × age) - 161.
What is TDEE and why is it important?
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TDEE (Total Daily Energy Expenditure) is your BMR multiplied by your activity level. It represents the total calories you burn in a day including exercise. Knowing your TDEE helps you set accurate calorie goals for weight loss, maintenance, or muscle gain.
How much weight can I lose per week safely?
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A safe and sustainable rate of weight loss is 0.5 to 1 kg (1-2 lbs) per week. This requires a daily calorie deficit of 500-1000 calories below your TDEE. Losing weight faster than this may lead to muscle loss, nutritional deficiencies, and metabolic slowdown.
Is the Mifflin-St Jeor formula accurate?
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The Mifflin-St Jeor equation is widely considered the most accurate BMR formula for the general population. It was developed in 1990 and validated by multiple studies. It provides results within about 10-15% of true BMR for most individuals, making it excellent for practical use.
How do I choose the right activity level?
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Sedentary: little to no exercise. Lightly active: exercise 1-3 days/week. Moderately active: exercise 3-5 days/week. Very active: hard exercise 6-7 days/week. Extra active: athlete or physical job. Choose honestly for accurate TDEE.
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