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Fitness, nutrition, pregnancy, sleep, and wellness calculators.
BMR Calculator
Estimate your basal metabolic rate, the number of calories your body uses at rest before activity is added.
Estimated BMR
1,783 kcal/day
BMR is the energy your body uses at complete rest before activity is added.
How to Use
- Choose sex and enter age first, because the standard BMR equations use both when estimating baseline energy needs.
- Add height in feet and inches and enter your current body weight as accurately as you can. Small input errors can shift the estimate more than people expect.
- Review the BMR result as your approximate calorie burn at complete rest before walking, work, training, or other daily movement is layered on top.
- Use BMR as a planning baseline, then move to TDEE or calorie-target tools if you want a more realistic estimate for maintenance, fat loss, or muscle gain.
- If your goal is nutrition planning, compare the result with your real-world weight trend over a few weeks. Formula estimates are useful, but your actual response matters more.
Frequently Asked Questions
What is BMR?
BMR stands for basal metabolic rate. It estimates how many calories your body needs at complete rest to support basic functions such as breathing, circulation, temperature regulation, and cellular activity.
Why is BMR useful?
BMR gives you a starting point for calorie planning. Most maintenance or fat-loss estimates are built by taking BMR and adjusting it upward for movement, exercise, and overall activity level.
Is BMR the same as maintenance calories?
No. Maintenance calories are usually higher because they include normal life activity and training. BMR is closer to the minimum energy your body would use if you stayed at complete rest all day.
Does body composition affect BMR?
Yes. Muscle mass, age, sex, height, and body size all influence metabolic rate. That is one reason equation-based results are estimates rather than exact personal measurements.
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