Calorie Calculator (BMR & TDEE)
How many calories you need a day to maintain, lose or gain weight.
Result
How to use
- 1
Enter your sex, age, height and weight.
- 2
Pick your activity level.
- 3
See your BMR, maintenance calories and targets.
Questions
What is BMR?
Basal Metabolic Rate is the energy your body uses at complete rest. This tool uses the Mifflin–St Jeor equation.
How fast should I lose weight?
About 0.25–0.5 kg a week is a sustainable pace for most adults. Please consult a doctor for medical conditions.
About this Calories tool
Calorie Calculator (BMR & TDEE) — How many calories you need a day to maintain, lose or gain weight. It is one of 200 free tools on namasivayam.in, made by software engineer Namasivayam Vadivelan for everyday use in India.
Everything is calculated instantly in your browser: nothing you type or upload is sent to any server, there is no sign-up, and it works on mobile and desktop. Enter your sex, age, height and weight.
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Results are estimates to help you plan. They are not financial, tax or medical advice.