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Calorie Calculator (TDEE)

Calculate daily calorie needs using the Mifflin-St Jeor equation with activity level multiplier.

Age (years)

Sex

Height (cm)

Height (ft / in)

Weight (kg)

Weight (lbs)

Activity Level

About Calorie Calculator (TDEE)

Stop doing complex calculations by hand or searching for formulas. Calorie Calculator (TDEE) lets you calculate daily calorie needs using the mifflin-st jeor equation with activity level multiplier in seconds with a clean, easy-to-use interface. Enter your values and get instant, accurate results along with step-by-step breakdowns where applicable.

How to Use

Enter your values Fill in the required input fields with your numbers. Use tab to move between fields quickly.

See instant results Results calculate automatically as you type — no need to press a button. Watch the output update in real time.

Review the breakdown Check the detailed breakdown, charts, or tables below the main result for a deeper understanding.

Adjust and compare Change any input value to instantly see how it affects the result. Great for comparing different scenarios.

🔒 Privacy note: All processing happens locally in your browser. Your data is never sent to any server.

Why Use Calorie Calculator (TDEE)?

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Accurate & Reliable Calorie Calculator (TDEE) uses standard mathematical formulas and algorithms, verified against reference implementations. Trust the results for homework, work, or personal use.

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Clear Explanations Get more than just a number. Where applicable, see step-by-step breakdowns, visual representations, and context that helps you understand the result.

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Instant Calculation Results update as you type — no need to press a calculate button or wait for a server response. Real-time feedback helps you explore different scenarios quickly.

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No Data Collection Your inputs are processed locally in your browser. No data is stored, transmitted, or used for any purpose. Close the tab and everything is gone.

Frequently Asked Questions

TDEE (Total Daily Energy Expenditure) is the total number of calories you burn per day including BMR × activity multiplier. Eating at TDEE maintains weight; below TDEE causes weight loss.

It's the most accurate BMR formula for most people. Male: BMR = 10W + 6.25H − 5A + 5. Female: BMR = 10W + 6.25H − 5A − 161. (W=kg, H=cm, A=age)

A deficit of 3,500 calories creates ~1 lb of fat loss. To lose 1 lb/week, eat ~500 calories below your TDEE daily. For 0.5 kg/week, eat ~1,100 calories below TDEE.