BMI Result: 4ft 6in, 158 lbs (BMI 38.1) - Female
According to CDC and WHO standards, a BMI of 38.1 is classified as Obese.
A female who is 4ft 6in tall and weighs 158lbs has a BMI of 38.1, which falls into the Obese category used by the CDC and WHO for adults.
| Category | BMI Range |
|---|---|
| Underweight | < 18.5 |
| Obese | ≥ 30 |
| Obese | ≥ 30 |
Healthy weight range for 4ft 6in: 77 lbs – 103 lbs
Metric: 137.2 cm, 71.7 kg
📏 Healthy waist circumference for your height: 30" – 35" (below 35" for female)
So you're 4ft 6in and weigh 158lbs. Your BMI is 38.1, which falls into the Obese category according to CDC and WHO standards. Let's break down what this means for your health.
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Change your height or weight to see how your BMI changes.
Understanding Your BMI
A BMI of 30 or above indicates obesity. The CDC reports that this range is associated with a 50-60% higher risk of cardiovascular disease and type 2 diabetes. Comprehensive lifestyle intervention and medical guidance are strongly recommended.
What This Means for Your Height
For women under 5ft 2in, waist-to-height ratio is particularly important. Research suggests that even at a normal BMI, a waist-to-height ratio above 0.5 may indicate increased health risks.
Weight & Threshold
Gaining approximately 7.9 lbs would bring your BMI to 40, the start of the next category.
⬇️ Losing approximately 33.6 lbs would bring you to the Overweight BMI threshold.
Waist & Health
The CDC recommends that non-pregnant women keep waist circumference below 35 inches. A waist-to-height ratio below 0.5 is also associated with lower health risks.
Age Context
For adults 45-64, metabolic health becomes increasingly important. At 64 years old, a woman at 4ft 6in and 158lbs has a BMI of 38.1, which falls into the Obese category.
At age 64, maintaining a healthy weight is particularly important. Research shows that adults over 45 with a BMI in the obese range have a significantly higher risk of metabolic syndrome and cardiovascular disease.
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Health Analysis
Recommendations
General Health
A BMI of 38.1 is in the obesity range defined by the CDC and WHO. This range is associated with a higher risk of cardiovascular disease and type 2 diabetes. Comprehensive lifestyle intervention and medical guidance are strongly recommended.
Monitoring
In addition to BMI, pay attention to waist circumference. The CDC recommends females stay under 35 inches. Regular tracking of your measurements over time provides the most useful insight into your health trends.
Next Steps
If you're concerned about your weight or body composition, a healthcare provider can offer personalized guidance based on your full health profile.
Personalized Notes
Health Risks
With a BMI of 38.1 for a 4ft 6in woman, the obesity range is associated with a 50-60% higher risk of cardiovascular disease and type 2 diabetes. Comprehensive lifestyle intervention and medical guidance are strongly recommended.
Monitoring
At 4ft 6in, schedule a comprehensive health checkup with your doctor. For women at this height, the CDC recommends keeping waist circumference below 35 inches. Regular monitoring of blood pressure and blood sugar is also important.
Frequently Asked Questions
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Related Tools & Articles
💡 About this calculation: BMI = (158 × 703) ÷ (54 × 54) = 38.1 | Metric: 137.2 cm, 71.7 kg
📖 Recommended reading:
Editorial Review: This page was generated by the BMI Calculator Web Editorial Team and reviewed at template and content-pool level for accuracy and guideline alignment by Dr. Sarah K. Johnson, PhD, RD. All content is aligned with current WHO, CDC, and NIH guidelines.
Published: 2026-06-25