BMI Result: 6ft 6in, 150 lbs (BMI 17.3) - Female
According to CDC and WHO standards, a BMI of 17.3 is classified as Underweight.
A female who is 6ft 6in tall and weighs 150lbs has a BMI of 17.3, which falls into the Underweight category used by the CDC and WHO for adults.
| Category | BMI Range |
|---|---|
| Underweight | < 18.5 |
| Underweight | < 18.5 |
| Obese | ≥ 30 |
Healthy weight range for 6ft 6in: 160 lbs – 216 lbs
Metric: 198.1 cm, 68.0 kg
📏 Healthy waist circumference for your height: 30" – 35" (below 35" for female)
So you're 6ft 6in and weigh 150lbs. Your BMI is 17.3, which falls into the Underweight category according to CDC and WHO standards. Let's break down what this means for your health.
Adjust Your Numbers
Change your height or weight to see how your BMI changes.
Understanding Your BMI
A BMI below 18.5 may indicate nutritional insufficiency. According to the CDC, this range is associated with increased risk of bone density loss and immune function decline. Consulting a healthcare provider is recommended for a thorough nutritional assessment.
What This Means for Your Height
For women over 5ft 11in, BMI may slightly underestimate body fat due to higher bone density. Muscle mass is also a factor—consider body fat percentage as a complementary measure.
Weight & Threshold
Gaining approximately 10.4 lbs would bring your BMI to 18.5, the start of the next category.
⬆️ Gaining approximately 10.4 lbs would put you in the Normal BMI range.
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 children and teenagers (under 18), BMI is interpreted differently. Unlike adults, BMI for youth is age- and sex-specific, using percentiles from CDC growth charts. For a 11-year-old girl at 6ft 6in and 150lbs, a BMI of 17.3 would be evaluated using pediatric growth percentiles rather than the adult underweight category.
👉 Use our Child BMI Calculator for a more accurate assessment for children and teens under 18.
👉 Visit our Kids BMI Percentile tool for detailed growth tracking.
Health Analysis
Recommendations
General Health
A BMI of 17.3 is below the CDC and WHO healthy range of 18.5-24.9. This may indicate nutritional insufficiency. Consulting a healthcare provider is recommended for a thorough nutritional assessment.
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
Diet & Nutrition
At 6ft 6in and 150lbs, a BMI of 17.3 indicates underweight. For women of this height, the CDC recommends a healthy weight range of 160-215lbs. Consider nutrient-dense foods like nuts, avocados, and lean proteins to support healthy weight gain.
Health Risks
With a BMI of 17.3 for a 6ft 6in woman, the underweight range is associated with increased risk of bone density loss and immune function decline. Consulting a healthcare provider is recommended for a thorough nutritional assessment.
Frequently Asked Questions
Am I at a healthy weight at 6ft 6in and 150lbs?
How does a BMI of 17.3 affect health for a 6ft 6in woman?
What is the BMI for a 6ft 6in woman at 150lbs?
What percentage of women have a BMI of 17.3 at 6ft 6in?
Related Tools & Articles
💡 About this calculation: BMI = (150 × 703) ÷ (78 × 78) = 17.3 | Metric: 198.1 cm, 68.0 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: 2026-10-13