Calculate your Basal Metabolic Rate (BMR)—the minimum calories your body requires at complete rest.
Enter your physiological parameters below to find your resting daily energy requirement.
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Basal Metabolic Rate (BMR) represents the exact quantity of energy (in calories) your body expends just to perform baseline metabolic processes while at rest. This includes vital tasks like breathing, circulating blood, cellular recovery, and keeping body temperature stable.
BMR is your baseline electrical consumption. It does not account for the energy used in standing up, typing on a keyboard, eating, or walking. BMR makes up the largest segment of your daily energy budget (around 60% to 70%).
We use the Mifflin-St Jeor equation to calculate your resting metabolic parameters because clinical research confirms it is the most reliable modern estimation method. The calculation varies by gender:
As you build skeletal muscle mass through strength exercises, your resting metabolic rate increases. Muscle tissue is active and requires energy to maintain, whereas fat tissue requires very little energy.