How to use the Calorie Calculator
Enter the age, height and weight and the result appears straight away. Everything runs in your browser, so nothing you type is uploaded.
The formula
Daily calories = BMR × activity factor + goal adjustment
Examples
- Maintenance for a 30-year-old man, 175 cm, 75 kg
Daily calories for your goal: 2,633 Maintenance (TDEE): 2,633 Adjustment: +0 calories
- Losing about 0.5 kg a week
Daily calories for your goal: 2,133 Maintenance (TDEE): 2,633 Adjustment: -500 calories
- Woman, 28, 165 cm, 62 kg, light activity, maintaining
Daily calories for your goal: 1,857 Maintenance (TDEE): 1,857 Adjustment: +0 calories
Limitations and assumptions
General estimate for adults, not medical advice. Speak to a doctor or registered dietitian before making significant changes to diet, exercise or health routines.
Frequently asked questions
How many calories do I need to lose weight?
Eating around 500 calories below maintenance is a common starting point for about 0.5 kg (1 lb) a week.
What is the minimum I should eat?
Targets below about 1,200 (women) or 1,500 (men) calories are usually only advised under medical supervision.
Does the calculator count exercise?
Yes, through the activity level you choose. Do not add exercise calories on top again.
How accurate is it?
It is an estimate; adjust after two to three weeks using your real weight trend.