BMI Result: 6ft 5in, 173 lbs (BMI 20.5) - Female
According to CDC and WHO standards, a BMI of 20.5 is classified as Normal.
A female who is 6ft 5in tall and weighs 173lbs has a BMI of 20.5, which falls into the Normal category used by the CDC and WHO for adults.
| Category | BMI Range |
|---|---|
| Underweight | < 18.5 |
| Normal | 18.5 – 24.9 |
| Obese | ≥ 30 |
Healthy weight range for 6ft 5in: 156 lbs – 210 lbs
Metric: 195.6 cm, 78.5 kg
📏 Healthy waist circumference for your height: 30" – 35" (below 35" for female)
So you're 6ft 5in and weigh 173lbs. Your BMI is 20.5, which falls into the Normal 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 in the 18.5-24.9 range is considered healthy by CDC and WHO standards. This range is associated with the lowest risk of cardiovascular disease and type 2 diabetes.
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 38.0 lbs would bring your BMI to 25, the start of the next category.
⬆️ Gaining approximately 38.0 lbs would put you in the Overweight BMI range.
⬇️ Losing approximately 16.9 lbs would bring you to the Underweight 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 49 years old, a woman at 6ft 5in and 173lbs has a BMI of 20.5, which falls into the Normal category.
For adults in this age range, maintaining stable weight and regular physical activity is key to preserving metabolic health.
👉 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 20.5 is within the normal range defined by the CDC and WHO. Staying within this range is generally associated with lower rates of chronic conditions compared to higher or lower BMI categories.
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.
Frequently Asked Questions
How do I calculate my BMI at 6ft 5in and 173lbs?
Is 173lbs overweight for a 6ft 5in woman?
How common is a BMI of 20.5 for a 6ft 5in woman?
What health risks are associated with a BMI of 20.5 for a 6ft 5in woman?
Related Tools & Articles
💡 About this calculation: BMI = (173 × 703) ÷ (77 × 77) = 20.5 | Metric: 195.6 cm, 78.5 kg
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Published: 2026-07-08