Basal Metabolic Rate (BMR) is the number of calories your body needs every day just to stay alive — for breathing, circulation, and basic cell function. Knowing your BMR is the first step to designing a calorie target for weight loss, maintenance or muscle gain. The InstantTool BMR calculator uses the Mifflin-St Jeor equation, considered the most accurate for the general population.
Basal Metabolic Rate (BMR) is the number of calories your body needs every day just to stay alive — for breathing, circulation, and basic cell function. Knowing your BMR is the first step to designing a calorie target for weight loss, maintenance or muscle gain. The InstantTool BMR calculator uses the Mifflin-St Jeor equation, considered the most accurate for the general population.
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Browse all toolsBMR Calculator calculations are a part of daily life for Indian households. A reliable calculator helps avoid errors, supports accurate financial decisions and ensures compliance with the latest Indian standards and tax rules.