Health Calculator
BMR Calculator
Estimate how many calories your body burns at rest to support basic functions such as breathing, circulation, and body temperature.
Calculate Your BMR
Enter your age, gender, height, and weight.
Height
Weight
Your result will appear here after calculation.
How This BMR Calculator Works
This calculator uses a common equation to estimate how many calories your body burns each day at complete rest. It takes into account your gender, age, weight, and height.
Why BMR Matters
Knowing your BMR can help you understand your baseline calorie needs. It is often used as the starting point for calorie, macro, and weight loss calculations.
BMR vs TDEE
BMR is the number of calories your body burns at rest. TDEE includes your daily activity, exercise, and movement. So TDEE is usually higher than BMR.
Frequently Asked Questions
What is a normal BMR?
There is no single normal BMR because it depends on body size, age, gender, and height.
Does age affect BMR?
Yes. BMR usually becomes lower with age because muscle mass often decreases over time.
Can I use BMR for weight loss?
Yes, but BMR alone is not enough. For weight loss planning, people usually use TDEE and then create a calorie deficit.
What Affects BMR?
Several factors can affect your Basal Metabolic Rate, including age, body weight, height, muscle mass, and gender. People with more muscle mass often burn more calories at rest.
Younger people and taller individuals also tend to have higher BMR values because their bodies require more energy to maintain normal functions.
Why BMR Is Important
Understanding your BMR can help you build a nutrition plan for weight loss, muscle gain, or maintenance. Many calorie and macro calculators use BMR as a starting point.
BMR and Weight Loss
Weight loss usually requires eating fewer calories than your total daily energy expenditure. However, eating too far below your BMR for long periods may reduce energy levels and recovery.
Ways to Support Metabolism
- Build muscle with strength training.
- Stay physically active during the day.
- Eat enough protein.
- Get enough sleep and recovery.
- Drink enough water daily.
BMR Calculator FAQ
Is BMR the same as calories burned per day?
No. BMR only measures calories burned at complete rest. Total daily calorie burn is usually higher because it includes movement and exercise.
Can exercise increase BMR?
Building muscle through exercise may help increase BMR over time because muscle tissue burns more calories.
Why is my BMR lower than expected?
Age, body size, muscle mass, and low activity levels can all affect BMR values.
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