What affects your daily calorie needs?
Your body uses energy to keep you alive, digest food, move and complete everyday activities. The amount varies from person to person.
Key factors
- Age: energy needs can change throughout adulthood.
- Body size: height, weight and body composition influence energy use.
- Activity: exercise and everyday movement affect total energy expenditure.
- Individual health: health status, medications and other factors can change needs.
Use estimates as a starting point
A calculator can provide an initial estimate, but it cannot measure your exact needs. Use the result cautiously and seek qualified advice when personal health factors matter.