Am I Severely Obese?

Answering this question may give you the courage you need to take the first step. Below are tools you can use to determine if you are morbidly obese and potentially a candidate for weight loss surgery.

There are several medically accepted criteria for defining morbid obesity. You are likely morbidly obese if you are:

  • more than 100 lbs. over your ideal body weight
  • have a Body Mass Index (BMI) of over 40
  • have a BMI of over 35 and are experiencing severe negative health effects, such as high blood pressure or diabetes, related to being severely overweight
  • unable to achieve a healthy body weight for a sustained period of time, even through medically supervised dieting

Please take a moment to calculate your BMI.


Calculate BMI

What does BMI mean?

BMI (body mass index) is a formula that uses both weight and height to estimate body fat. For most people, BMI provides a reasonable estimate of body fat. Excess body fat is related to serious health conditions. Its biggest weakness is that it doesn't consider individual factors such as bone or muscle mass. BMI may:

  • Underestimate body fat for older adults or other people with low muscle mass
  • Overestimate body fat for people who are very muscular and physically fit
  • Inadequately evaluate health risks of people with excess abdominal fat

Talk with your doctor if you have questions about your BMI.

What you can do

Being underweight may weaken your immune system and put you at greater risk of osteoporosis. Talk to your doctor to determine what — if anything — you can do to achieve a healthy weight, or to address unexpected weight loss. To support good health:

  • Embrace healthy eating as a lifestyle by choosing a variety of nutrient-rich foods including fruits, vegetables and whole grains.
  • Eat between-meal healthy snacks — whole-grain crackers and nuts, for example — to increase the calories in your diet.
  • Exercise. Your doctor may recommend strength training to promote lean muscle development and increase your weight in a healthy way.

Congratulations

Your healthy weight is well worth the effort. It reduces your risk of serious health conditions such as high blood pressure, heart disease, stroke and diabetes. To maintain a healthy weight:

  • Embrace healthy eating as a lifestyle by choosing a variety of nutrient-rich foods including fruits, vegetables and whole grains.
  • Exercise. Aim for 30 to 60 minutes of moderately intense activity daily.
  • Set action goals focused on specific healthy activities such as improving muscle tone through strength training, or starting a daily food and activity diary.

What you can do

Consider the benefits of achieving a healthy weight a reduced risk of serious health conditions such as heart disease, stroke and diabetes, increased energy and improved self-esteem, for example. Then talk to your doctor about the best weight-loss approach for you. To get started:

  • Embrace healthy eating as a lifestyle by choosing a variety of nutrient-rich foods including fruits, vegetables and whole grains.
  • Exercise. Before exercising ask your doctor about the right level and type of activities for you. Remember, even small amounts of activity provide immediate health benefits.
  • Set action goals focused on specific healthy activities such as starting a daily food and activity diary.

What you can do

Consider the benefits of achieving a healthy weight — a reduced risk of serious health conditions such as heart disease, stroke and diabetes, increased energy and improved self-esteem, for example. Then talk to your doctor about the best weight-loss approach for you. To get started:

  • Embrace healthy eating as a lifestyle by choosing a variety of nutrient-rich foods including fruits, vegetables and whole grains.
  • Exercise: Before exercising ask your doctor about the right level and type of activities for you. Remember, even small amounts of activity provide immediate health benefits.
  • Set action goals focused on specific healthy activities such as starting a daily food and activity diary.
Underweight Below 18.5
Normal 18.5 - 24.9
Overweight 25.0 - 29.9
Obese 30.0 and Above
Recalculate BMI

Note: BMI calculations are based on NHLBI table data. Information that you enter won't be saved or shared with anyone.


Ideal Body Weight Chart

Male Female
Height Ideal Weight Height Ideal Weight
4' 6" 63 - 77 lbs. 4' 6" 63 - 77 lbs.
4' 7" 68 - 84 lbs. 4' 7" 68 - 83 lbs.
4' 8" 74 - 90 lbs. 4' 8" 72 - 88 lbs.
4' 9" 79 - 97 lbs. 4' 9" 77 - 94 lbs.
4' 10" 85 - 103 lbs. 4' 10" 81 - 99 lbs.
4' 11" 90 - 110 lbs. 4' 11" 86 - 105 lbs.
5' 0" 95 - 117 lbs. 5' 0" 90 - 110 lbs.
5' 1" 101 - 123 lbs. 5' 1" 95 - 116 lbs.
5' 2" 106 - 130 lbs. 5' 2" 99 - 121 lbs.
5' 3" 112 - 136 lbs. 5' 3" 104 - 127 lbs.
5' 4" 117 - 143 lbs. 5' 4" 108 - 132 lbs.
5' 5" 122 - 150 lbs. 5' 5" 113 - 138 lbs.
5' 6" 128 - 156 lbs. 5' 6" 117 - 143 lbs.
5' 7" 133 - 163 lbs. 5' 7" 122 - 149 lbs.
5' 8" 139 - 169 lbs. 5' 8" 126 - 154 lbs.
5' 9" 144 - 176 lbs. 5' 9" 131 - 160 lbs.
5' 10" 149 - 183 lbs. 5' 10" 135 - 165 lbs.
5' 11" 155 - 189 lbs. 5' 11" 140 - 171 lbs.
6' 0" 160 - 196 lbs. 6' 0" 144 - 176 lbs.
6' 1" 166 - 202 lbs. 6' 1" 149 - 182 lbs.
6' 2" 171 - 209 lbs. 6' 2" 153 - 187 lbs.
6' 3" 176 - 216 lbs. 6' 3" 158 - 193 lbs.
6' 4" 182 - 222 lbs. 6' 4" 162 - 198 lbs.
6' 5" 187 - 229 lbs. 6' 5" 167 - 204 lbs.
6' 6" 193 - 235 lbs. 6' 6" 171 - 209 lbs.
6' 7" 198 - 242 lbs. 6' 7" 176 - 215 lbs.
6' 8" 203 - 249 lbs. 6' 8" 180 - 220 lbs.
6' 9" 209 - 255 lbs. 6' 9" 185 - 226 lbs.
6' 10" 214 - 262 lbs. 6' 10" 189 - 231 lbs.
6' 11" 220 - 268 lbs. 6' 11" 194 - 237 lbs.
7' 0" 225 - 275 lbs. 7' 0" 198 - 242 lbs.

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