Health
Calorie Calculator
Use this calorie calculator to estimate maintenance calories and simplified gain-or-loss ranges. It is designed for educational planning only and should not be treated as medical or nutrition advice.
Estimated maintenance calories
2,724 kcal/day
Use the maintenance figure as a rough starting point, not a medical prescription.
Estimated BMR
1,758 kcal/day
Mild fat-loss target
2,224 kcal/day
Mild gain target
3,024 kcal/day
Activity multiplier
1.55
How this calculator works
This calculator starts with a basal metabolic rate estimate and then applies a broad activity multiplier to estimate total daily energy needs. In plain language, it combines body size, age, sex, and a rough movement assumption to estimate maintenance calories.
It also shows simplified lower and higher calorie targets so you can compare a mild fat-loss or gain scenario without doing the math manually. If you want to isolate the resting-energy piece on its own, the BMR calculator is the best companion tool.
What the result means
The maintenance result is a planning estimate for roughly weight stability under the selected assumptions. The gain and loss targets are not personalized prescriptions. They are simple reference points that can help you think through possible scenarios.
Because nutrition and body-composition questions rarely come down to one number alone, many people also compare the result alongside the BMI calculator and body fat calculator.
Important limitations
This calculator uses formula-based estimates, not direct metabolic measurement. Real energy needs can vary because of training volume, body composition, medication, medical conditions, and day-to-day routine differences.
It does not provide medical advice, diagnosis, or treatment guidance. For personal health concerns, disordered eating history, or individualized nutrition questions, consult a qualified healthcare professional.
When to use this calculator
Use this tool when you want a structured calorie starting point for general wellness planning, body-weight trend review, or educational comparison across different activity levels.
It pairs naturally with how many calories you should eat, what BMR means, and the health hub for broader context.
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FAQs
Does this calorie calculator tell me exactly how much to eat?
No. It provides a useful estimate, not an exact prescription or a guarantee of results.
What is the difference between BMR and maintenance calories?
BMR is a resting-energy estimate, while maintenance calories add a rough activity assumption on top of that baseline.
Can two people with similar body size need different calories?
Yes. Formula estimates can differ from real needs because of lifestyle, training, body composition, and individual physiology.
Should I use this tool for a medical condition?
Not as a substitute for care. If you have a personal medical or nutrition concern, consult a qualified healthcare professional.
Is this nutrition or medical advice?
No. It is an educational estimate only.