BMI Result: 4ft 9in, 171 lbs (BMI 37.0) - Male
According to CDC and WHO standards, a BMI of 37.0 is classified as Obese.
A male who is 4ft 9in tall and weighs 171lbs has a BMI of 37.0, 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 9in: 86 lbs – 115 lbs
Metric: 144.8 cm, 77.6 kg
📏 Healthy waist circumference for your height: 35" – 40" (below 40" for male)
So you're 4ft 9in and weigh 171lbs. Your BMI is 37.0, 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 men under 5ft 5in, abdominal fat is a key health indicator. Even with a normal BMI, excess belly fat can increase cardiovascular risk.
Weight & Threshold
Gaining approximately 13.9 lbs would bring your BMI to 40, the start of the next category.
⬇️ Losing approximately 32.4 lbs would bring you to the Overweight BMI threshold.
Waist & Health
The CDC recommends that men keep waist circumference below 40 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 57 years old, a man at 4ft 9in and 171lbs has a BMI of 37.0, which falls into the Obese category.
At age 57, 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.
👉 Calculate your Body Fat Percentage for a more complete health assessment.
👉 Try our Athlete BMI Calculator if you have higher muscle mass.
Health Analysis
Recommendations
General Health
A BMI of 37.0 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 males stay under 40 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 37.0 for a 4ft 9in man, the obesity range is associated with a 40-50% higher risk of cardiovascular disease and type 2 diabetes. Comprehensive lifestyle intervention and medical guidance are strongly recommended.
Diet & Nutrition
At 4ft 9in and 171lbs, a BMI of 37.0 falls into the obesity category for men. Working with a registered dietitian to develop a structured, sustainable eating plan is recommended.
Frequently Asked Questions
How do I calculate my BMI at 4ft 9in and 171lbs?
What percentage of men have a BMI of 37.0 at 4ft 9in?
What health risks are associated with a BMI of 37.0 for a 4ft 9in man?
Is 171lbs overweight for a 4ft 9in man?
Related Tools & Articles
💡 About this calculation: BMI = (171 × 703) ÷ (57 × 57) = 37.0 | Metric: 144.8 cm, 77.6 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: 2026-07-03