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Use this calorie calculator to estimate how many calories you may need each day based on your age, gender, height, weight and activity level. It can be helpful for daily calorie planning, maintenance targets, weight-loss planning and weight-gain planning, but it should be treated as an estimate rather than an exact prescription.
Daily calories are estimated by calculating BMR first and then applying an activity factor.
A calorie calculator estimates how many calories your body may need per day to maintain your current weight. It uses personal inputs such as age, gender, height, weight and activity level to produce a general daily calorie estimate.
This kind of tool is often used as a starting point for meal planning, fitness routines and weight management. It is helpful for understanding energy needs, but it does not replace personalized medical or nutritional advice.
This tool first estimates your Basal Metabolic Rate (BMR), which is the number of calories your body may need at rest. It then multiplies that value by an activity factor to estimate your Total Daily Energy Expenditure (TDEE), which is your approximate daily calorie need.
Suppose a 28-year-old woman weighs 65 kg, is 165 cm tall, and is moderately active. The calculator first estimates her BMR, then applies the selected activity factor to estimate total daily calorie needs.
The result may show that she needs around 2,000 calories per day to maintain her current weight. This estimate can then be used as a practical starting point for diet planning or routine calorie tracking.
This calculator gives an estimate based on standard formulas. Actual calorie needs can vary because of body composition, hormones, medical conditions, metabolism, sleep, stress, training style and day-to-day lifestyle.
That means the result is best used for general planning and awareness. If you need a personalized calorie target for a health condition, sports performance or clinical nutrition plan, it is better to consult a qualified professional.
Disclaimer: This calculator is provided for informational and educational use only. It does not replace medical, nutritional or professional advice.