Calculate calorie requirements
With the Calorie Requirement tool, you gain insight into the number of calories your body needs daily.
With the Calorie Requirement Calorie tool , you gain insight into the number of calories your body needs daily. This value helps determine a healthy eating pattern, lose weight, gain weight, or maintain your weight. The calculator uses recognized formulas and takes your personal data and activity level into account.
What is calorie requirement?
Your calorie requirement is the number of calories your body consumes per day to function. This consists of:
- Basal metabolic rate (BMR) : energy at rest
- Activity : movement, work and sport
Together, these form your total daily energy requirement (TDEE) .
Used formula
This tool uses the Mifflin-St Jeor formula , a widely used and reliable method.
BMR
- Men: 10 × weight + 6.25 × height − 5 × age + 5
- Women: 10 × weight + 6.25 × height − 5 × age − 161
Total calorie requirement (TDEE) BMR × activity factor
Activity factors
- Sitting (little movement): 1.2
- Mildly active: 1.375
- Moderately active: 1.55
- Very active: 1,725
- Extremely active: 1.9
When do you use this tool?
- For losing or gaining weight
- For maintaining weight
- In sports and fitness
- For nutrition planning
- In combination with BMI and ideal weight
How does the tool work?
You fill in:
- Gender
- Age
- Length (cm)
- Weight (kg)
- Activity level
The tool automatically calculates your daily calorie requirement.
Losing or gaining weight
- Weight loss : eat ± 300–500 kcal below your needs
- Gaining weight : eat ± 300–500 kcal above your needs
These are general guidelines, not medical advice.
Limits
The calculation does not take into account:
- body composition
- medical conditions
- hormonal differences
Use the result as a guideline.
Frequently Asked Questions
Is this tool suitable for everyone? For adults without medical conditions.
Is it rounded? Yes, to whole calories.
Is this exact? It is an estimate, but a reliable one.