Your daily calorie target:

How Calorie Deficit Is Calculated

A calorie deficit occurs when you consume fewer calories than your body burns in a day. This energy gap forces your body to use stored fat for fuel, leading to weight loss over time.

Step 1: Estimate Basal Metabolic Rate (BMR)

BMR is the number of calories your body burns at rest to maintain vital functions like breathing and circulation.

Step 2: Calculate Total Daily Energy Expenditure (TDEE)

TDEE adjusts BMR according to your activity level, reflecting the total calories you burn daily.

Step 3: Apply a Calorie Deficit

A moderate calorie reduction, usually 300–500 calories per day, creates a sustainable deficit for healthy fat loss. This calculator combines these steps to provide your recommended daily calorie intake.

How to Use the Calorie Deficit Calculator

1. Enter your gender, age, height, and weight.

2. Select your daily activity level.

3. Choose your weight loss goal.

4. Click "Calculate".

5. Instantly view your recommended daily calorie intake and calorie deficit.

What Is a Healthy Calorie Deficit?

A healthy calorie deficit balances fat loss with energy, muscle preservation, and overall health. Guidelines include:

• 300–500 calories/day: slow, sustainable weight loss

• 500–750 calories/day: moderate fat loss

• Over 1,000 calories/day: not recommended without medical supervision

Extreme calorie deficits may lead to fatigue, muscle loss, and metabolic slowdown.

Notice

This Calorie Deficit Calculator is for informational purposes only and does not provide medical advice. For personalized nutrition or weight loss guidance, consult a qualified healthcare or nutrition professional.

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Calorie Deficit Calculator FAQ

How many calories should I eat to lose weight? +
Most people lose weight by maintaining a daily calorie deficit of 300–500 calories. The exact number depends on age, gender, height, weight, and activity level.
Is a calorie deficit safe? +
Yes, a moderate calorie deficit is generally safe for healthy individuals. Extremely low calorie intake can be harmful and should be avoided unless supervised by a professional.
Why am I not losing weight in a calorie deficit? +
Common reasons include inaccurate calorie tracking, metabolic adaptation, low physical activity, or water retention. Consistency and accurate tracking are key.
How fast can I lose weight with a calorie deficit? +
A safe and sustainable rate is about 0.5–1 pound (0.25–0.5 kg) per week. Faster weight loss may increase muscle loss and fatigue.
Do I need exercise to create a calorie deficit? +
Exercise is not required, but it helps increase calorie burn, preserve muscle mass, and improve overall health while maintaining a calorie deficit.
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