How to Use the TDEE Calculator to Lose Weight

A TDEE (Total Daily Energy Expenditure) calculator to lose weight estimates how many calories your body burns daily and how many you need to eat to reduce body fat effectively.

Understanding your TDEE is a foundational step in any weight loss journey because it shows you exactly how many calories to consume each day to either maintain, lose, or gain weight.

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Step-by-Step: How to Use the TDEE Calculator

1. Enter Your Age

This helps the calculator determine your basal metabolic rate (BMR), which naturally decreases with age.

2. Choose Your Gender

Males and females have different BMR formulas due to differences in body composition.

3. Enter Your Weight and Height

These are key factors used to calculate your BMR using the Mifflin-St.. Jeor Equation.

4. Select Your Activity Level

This adjusts your TDEE based on how active you are:

• Sedentary: Little or no exercise
• Lightly Active: 1–3 days of light activity per week
• Moderately Active: 3–5 workouts a week
• Very Active: Daily exercise or intense training
• Super Active: Twice-a-day training or a physical job

5. Click “Calculate”

The calculator instantly provides:

• Your TDEE (calories to maintain weight)
• Calories to lose 0.5 kg per week
• Calories to lose 1 kg per week

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Example

If you’re:

• 30 years old
• Female
• 70 kg
• 170 cm tall
• Moderately active (3–5 workouts/week)

Your calculator results may look like:

• TDEE: 2200 kcal
• For 0.5 kg/week loss: 1700 kcal/day
• For 1 kg/week loss: 1200 kcal/day

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FAQ: TDEE Calculator for Weight Loss

1. What does TDEE mean?

TDEE stands for Total Daily Energy Expenditure – the total number of calories your body uses in a day.

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2. How accurate is the TDEE calculator?

It’s an estimate based on proven formulas, but actual energy use may vary depending on genetics, hormone levels, and muscle mass.

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3. Can I lose more than 1 kg/week?

Yes, but it’s not always safe or sustainable. The calculator provides recommended and safe calorie deficits for steady fat loss.

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4. What happens if I eat below the suggested calorie deficit?

Eating too little can slow metabolism, cause fatigue, and lead to muscle loss. Stick to safe deficit ranges unless advised by a professional.

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5. How often should I recalculate my TDEE?

Every time you lose a significant amount of weight (5–10 kg), or if your activity level changes.