Which calorie formula does this calculator use?

We use the Mifflin-St Jeor equation, which is considered the most accurate for most people. It calculates your BMR based on age, sex, weight, and height, then multiplies by an activity factor to get your TDEE.

How many calories should I eat to lose weight?

A calorie deficit of 500 calories per day typically results in about 0.5 kg (1 lb) of weight loss per week. So if your TDEE is 2,500 calories, eating 2,000 calories per day should produce steady, sustainable weight loss.

Why is my TDEE different from what other calculators show?

Different calculators use different formulas (Harris-Benedict, Katch-McArdle, Mifflin-St Jeor). Results can also vary based on how you interpret your activity level. The Mifflin-St Jeor equation used here tends to be the most accurate for the general population.

How accurate is this calculator?

TDEE calculators provide estimates. Your actual calorie needs can vary by ±10–15% based on genetics, muscle mass, and other factors. Use the result as a starting point and adjust based on whether your weight is trending up, down, or staying the same.

Calorie & TDEE Calculator — Free Daily Calorie Needs

The Calorie & TDEE Calculator estimates how many calories your body burns every day based on your age, sex, weight, height, and activity level. TDEE (Total Daily Energy Expenditure) is your body's total calorie burn — the magic number that determines whether you gain, lose, or maintain your weight. By knowing your TDEE, you can set calorie targets that actually work for your goals. Use this free tool to calculate your personalized daily calorie needs in seconds.

Age(years)

Sex

Weight(kg)

Height(cm)

Activity Level

How to Use This Calculator

1
Enter your age, sex, weight (kg), and height (cm).
2
Select your activity level from the dropdown — be honest for the most accurate result.
3
Click Calculate to see your daily TDEE.
4
Use the result to set your calorie goal based on your target (loss, maintenance, or gain).

Frequently Asked Questions

TDEE stands for Total Daily Energy Expenditure. It's the total number of calories your body burns in a day, accounting for your basal metabolic rate (calories burned at rest) plus calories burned through physical activity.

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