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At 5'4" and 310 lbs, your BMI is 53.2, placing you in the Obese Class III category. A BMI of 53.2 falls in the Class III (severe) obesity range (40 and above). Medical guidance is strongly recommended alongside lifestyle changes.
53.2
BMI
Obese Class III
Category
108-145
Healthy range (lbs)
-165 lbs
To healthy high
BMI 53.2: Obese Class III
| BMI | Category | Weight (lbs) | Your Status |
|---|---|---|---|
| Below 18.5 | Underweight | Below 108 lbs | - |
| 18.5 to 24.9 | Normal | 108 to 145 lbs | Goal range |
| 25.0 to 29.9 | Overweight | 146 to 174 lbs | - |
| 30.0+ | Obese | Above 174 lbs | You are here |
Your BMI of 53.2 puts you in the Obese Class III category for someone 5'4".
To reach the upper boundary of the healthy range (145 lbs), you would need to lose approximately 165 lbs. A sustainable rate is 0.5 to 1 lb per week, which means roughly 220 weeks at a moderate calorie deficit.
Keep in mind that BMI does not account for muscle mass. Two people at 5'4" and 310 lbs can have very different body compositions. Body fat percentage is a more precise indicator of health risk.
BMI only uses height and weight. Body fat percentage measures actual fat tissue as a proportion of total weight, making it more precise for body composition assessment. Two people with the same BMI of 53.2 can have very different body fat percentages depending on muscle mass. Athletes often have BMI values above 25 while maintaining low body fat. Use body fat percentage to set specific fitness goals.
A BMI of 53.2 at 5'4" places you in the Obese Class III category. BMI (Body Mass Index) is calculated by dividing weight in pounds by height in inches squared, then multiplying by 703. The healthy range is 18.5 to 24.9, which translates to 108 to 145 lbs for someone 5'4".
At 5'4", a weight of 310 lbs gives a BMI of 53.2, which is in the Obese Class III category. The healthy weight range for 5'4" is 108 to 145 lbs. This is above the healthy range. Keep in mind BMI does not account for muscle mass or body composition.
A healthy weight for someone 5'4" is between 108 and 145 lbs, based on a BMI of 18.5 to 24.9. This range reflects the weights most associated with reduced risk of chronic disease. Individual factors like muscle mass, frame size, and body fat distribution also matter.
To reach low end (108 lbs)
202 lbs to lose
To reach high end (145 lbs)
165 lbs to lose
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