Calorie Calculator
Get an accurate estimate of your daily calorie needs to maintain, lose, or gain weight based on your age, gender, body composition, and activity level.
How to Use Calorie Calculator
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Select unit system: Choose between Metric (cm/kg) or Imperial (ft/in, lbs).
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Enter your age, gender, height, and weight in the respective fields.
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Choose your activity level from the dropdown (e.g., moderate: exercise 4–5 times/week).
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Click “Calculate” to get your daily maintenance calories.
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Use “Sample” to test values or “Reset” to start over.
Calorie Calculator Key Features
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Estimates daily caloric needs using the Mifflin-St Jeor equation
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Adjusts results for activity level, from sedentary to very active
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Displays total daily energy expenditure (TDEE)
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Supports both Metric and Imperial units
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Responsive UI, accessible across all devices
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Instant output for weight maintenance insights
Why Calorie Calculator Is Best for Weight & Nutrition Planning
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Accurate TDEE calculation for personalized calorie needs
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Essential for diet planning—whether cutting, bulking, or maintaining
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Helps prevent under- or overeating during fitness programs
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Designed for trainers, dietitians, athletes, and everyday users
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Simplifies nutritional awareness in just a few clicks
Use Cases of Calorie Calculator
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Plan daily calories to maintain current weight based on lifestyle
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Create a caloric deficit to support fat loss
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Design a surplus-based diet to gain lean muscle mass
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Help clients or patients estimate their TDEE before macro planning
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Integrate into fitness or health apps for personalized diet tracking
Related Tools
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TDEE Calculator – Get advanced breakdowns of Total Daily Energy Expenditure including BMR and exercise energy cost.
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Age Calculator – Use to verify accurate age input for caloric calculations.
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Percentage Calculator – Calculate calorie reductions or surpluses by percentage.
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Average Calculator – Track and average your weekly or monthly calorie intake.
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[BMI Calculator] (Coming soon) – Pair with calorie data to assess weight category and set goals.
FAQs
How does this calorie calculator work?
It uses the Mifflin-St Jeor equation, adjusted for your activity level, to estimate how many calories you need per day.
What is TDEE?
TDEE stands for Total Daily Energy Expenditure, the total number of calories your body burns each day.
Is this calculator suitable for both men and women?
Yes. The formula adjusts based on gender, age, height, weight, and activity.
Does this support metric and imperial units?
Yes. You can toggle between Metric (cm/kg) and Imperial (ft/in, lbs).
Can I use this for weight loss or gain?
Yes. Once you have your maintenance calories, reduce by 15–20% to lose weight or increase by 10–15% to gain.
Are results personalized?
Yes. The calculator provides a custom calorie estimate based on the specific input values.
Is this tool medically approved?
It uses clinically recognized formulas, but it’s best used as a guideline. Always consult a healthcare provider for specific diet plans.
Can I calculate calories for others?
Yes. Input their personal data and activity level to generate an estimate.
Can I recalculate easily?
Yes. You can change values and click Calculate again for instant updates.
Is this tool free and private?
Yes. It is 100% free and does not collect any personal data.
🔒 Security & Privacy Notes
This tool runs entirely in your browser.
No personal data, health metrics, or input values are stored or transmitted.
Your privacy is fully protected during use.
For more information, view our full Privacy Policy
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