BMI Result: 4ft 11in, 170 lbs (BMI 34.3) - Female

According to CDC and WHO standards, a BMI of 34.3 is classified as Obese.

Quick answer: A 4ft 11in female weighing 170 lbs has a BMI of 34.3, classified as Obese by CDC and WHO standards. The healthy weight range for this height is approximately 92–123 lbs.

A female who is 4ft 11in tall and weighs 170lbs has a BMI of 34.3, which falls into the Obese category used by the CDC and WHO for adults.

34.3
Obese
⚠️ BMI is a screening tool, not a diagnostic. It does not measure body fat directly. Learn more about how BMI is used.
Underweight Normal Overweight Obese
CategoryBMI Range
Underweight< 18.5
Obese ≥ 30
Obese≥ 30

Healthy weight range for 4ft 11in: 92 lbs – 123 lbs

Metric: 149.9 cm, 77.1 kg

📏 Healthy waist circumference for your height: 30" – 35" (below 35" for female)

So you're 4ft 11in and weigh 170lbs. Your BMI is 34.3, which falls into the Obese category according to CDC and WHO standards. Let's break down what this means for your health.

Adult BMI classification: CDC & WHO standard (effective 1998-present).

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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.

Source: CDC Adult BMI Guidelines (2024)

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 28.2 lbs would bring your BMI to 40, the start of the next category.

⬇️ Losing approximately 21.3 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.

Source: CDC Adult BMI Guidelines (2024)

Age Context

For adults 45-64, metabolic health becomes increasingly important. At 48 years old, a woman at 4ft 11in and 170lbs has a BMI of 34.3, which falls into the Obese category.

At age 48, 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

A BMI of 34.3 for a female with height 4ft 11in and weight 170lbs falls into the Obese category.

Recommendations

General Health

A BMI of 34.3 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

Physical Activity

For a woman at 4ft 11in, start with low-impact activities like swimming or stationary cycling to protect your joints while building stamina. Consult your doctor before starting any new exercise program.

Goals

For a woman at 4ft 11in, the CDC recommends a healthy weight range of 91-123lbs. At 170lbs, you're above this range. Working with a healthcare provider to set a safe weight loss goal is recommended.

Always consult a healthcare provider for personalized medical advice.

Frequently Asked Questions

How do I calculate my BMI at 4ft 11in and 170lbs?
BMI is calculated as weight (lbs) × 703 ÷ height (in)². For a 4ft 11in woman at 170lbs, the calculation is 170 × 703 ÷ 59² = 34.3, which is Obese.
What percentage of women have a BMI of 34.3 at 4ft 11in?
The CDC reports that approximately 25-30% of women fall into the Obese BMI category. Your BMI of 34.3 at 4ft 11in and 170lbs places you there.
How does a BMI of 34.3 affect health for a 4ft 11in woman?
At 4ft 11in with a BMI of 34.3 (Obese), the obesity range is associated with a 50-60% higher risk of cardiovascular disease and type 2 diabetes. Maintaining a healthy lifestyle is key to overall well-being.
Am I at a healthy weight at 4ft 11in and 170lbs?
At 4ft 11in and 170lbs, a woman's BMI is 34.3, which is Obese. This falls into the CDC's obesity category (30+).

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Related Tools & Articles

💡 About this calculation: BMI = (170 × 703) ÷ (59 × 59) = 34.3 | Metric: 149.9 cm, 77.1 kg

📖 Recommended reading:

Content references CDC and WHO guidelines. For informational purposes only, not medical advice.

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: 2026-07-10

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