ESTIMATED DAILY CALORIES
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Enter your details to calculate.
This calculator gives a general estimate only. It does not replace professional medical, dietary or fitness advice.
How to calculate daily calories
Daily calorie needs are usually estimated using your age, sex, height, weight and activity level. The result is an estimate of how many calories your body may use in a typical day.
This calculator estimates your basal metabolic rate, then adjusts it based on activity level. Basal metabolic rate means the estimated energy your body uses at rest.
Example: moderately active adult
If someone has an estimated basal metabolic rate of 1,600 calories per day and an activity multiplier of 1.55, their estimated daily calorie use would be:
1,600 × 1.55 = 2,480 calories per day
What this calculator is for
This calorie calculator gives a general estimate of daily calorie needs. It may be useful for understanding maintenance calories, planning food intake, comparing activity levels or getting a rough guide for health and fitness awareness.
The result should be treated as an estimate, not an exact personal target. Real calorie needs can vary depending on body composition, health status, training, hormones, medication, sleep, stress and other factors.
Important note
This calculator is for general informational purposes only and should not replace professional medical advice. Always consult a qualified healthcare professional before making significant changes to your diet, exercise routine, hydration, weight management or lifestyle, especially if you have a medical condition, take medication, are pregnant, or have specific health concerns.
Frequently Asked Questions
What does a calorie calculator estimate?
A calorie calculator estimates how many calories your body may use each day based on personal details and activity level.
What is basal metabolic rate?
Basal metabolic rate is the estimated number of calories your body uses at rest for basic functions such as breathing, circulation and temperature regulation.
Is this result exact?
No. The result is an estimate only. Actual calorie needs can vary from person to person.
Can I use this for weight loss?
This calculator can provide general awareness, but it should not replace personalised medical, nutritional or fitness advice.
Should I speak to a healthcare professional?
Yes, especially before making significant changes to your diet, exercise routine, weight management or lifestyle, or if you have a medical condition, take medication, are pregnant, or have specific health concerns.