# BMR Calculator

> Estimate your Basal Metabolic Rate — the calories your body burns at rest — using the Mifflin–St Jeor equation.

**URL:** https://www.calculatoranswers.com/bmr-calculator
**Category:** Health

## Quick Answer

Estimate your Basal Metabolic Rate, which is the baseline number of calories your body burns at complete rest. Enter your age, biological sex, height, and weight to see the result.

## Definition

A Basal Metabolic Rate (BMR) calculator is a physical assessment tool that estimates the daily energy expenditure required to sustain basic physiological functions while at complete rest. The calculation employs standard formulas, such as the Mifflin-St Jeor equation, relying on physical attributes including height, weight, biological sex, and age. The resulting output represents the baseline caloric requirement before accounting for physical activity. Fitness planners and individuals use it as a foundational value to determine total energy needs.

## How to Use

1. **Select your profile parameters** — Select your biological sex, and enter your current age in years.
2. **Input height and weight** — Type your current height and weight into the measurement fields using imperial or metric units.
3. **Read estimated daily calories** — View the calculated baseline calories burned per day, shown alongside the formulas used.

## Disclaimer

This calculator provides estimates for educational and planning purposes. Always consult a qualified professional for specific advice on financial, medical, legal, or other regulated decisions.

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