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Calorie Calculator

Find your daily maintenance calories and targets for weight loss or weight gain.

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Enter Your Details

Enter a valid age
Enter a valid weight
Enter a valid height
Maintenance Calories0
0Mild Weight Loss (-0.25kg/wk)
0Weight Loss (-0.5kg/wk)
0Weight Gain (+0.25kg/wk)

How the Calorie Calculator Works

This calculator estimates your Basal Metabolic Rate (BMR) using the Mifflin-St Jeor equation, then multiplies it by an activity factor to estimate total daily calories needed to maintain your current weight.

Formula Used

Men: BMR = 10W + 6.25H − 5A + 5 Women: BMR = 10W + 6.25H − 5A − 161

W = weight in kg, H = height in cm, A = age in years. Maintenance calories = BMR × activity factor.

Practical Use

A deficit of about 500 calories/day leads to roughly 0.5 kg (1 lb) of weight loss per week. Use the ranges above as a starting point and adjust based on real-world progress.

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