Nutrition resource
Understanding your weight
Overweight and obesity are an abnormal or excessive accumulation of fat that can harm your health. These two numbers are the starting point clinicians use — but they are only a starting point, not a diagnosis.
What actually helps
- A healthy diet you can keep up
- Regular physical activity
- Changing the habits around eating, not just the food
Body mass index (BMI)
BMI compares your weight to your height. It is a quick screen for adults — it does not measure body fat directly and it is not meant for children, athletes or people who are pregnant.
| Status | BMI |
|---|---|
| Underweight | < 18.5 |
| Normal weight | 18.5 – 24.9 |
| Overweight | 25.0 – 29.9 |
| Obesity | ≥ 30.0 |
Adults only
Basal metabolic rate (BMR)
BMR is roughly how many calories your body burns at rest to keep breathing, circulating blood, producing cells, processing nutrients and holding its temperature. It accounts for about 60–75% of what most people burn in a day.
These calculators are for education only. They are not a diagnosis and they do not replace your doctor. Talk to a health professional before changing your diet or activity.
Learn moreWant to use one of these services?
Tell us what you need and one of our agents will call you back. There is no cost and you do not need insurance.