BMI Result: 5ft 1in, 86 lbs (BMI 16.2) - Male

According to CDC and WHO standards, a BMI of 16.2 is classified as Underweight.

Quick answer: A 5ft 1in male weighing 86 lbs has a BMI of 16.2, classified as Underweight by CDC and WHO standards. The healthy weight range for this height is approximately 98–132 lbs.

A male who is 5ft 1in tall and weighs 86lbs has a BMI of 16.2, which falls into the Underweight category used by the CDC and WHO for adults.

16.2
Underweight
⚠️ 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
Underweight < 18.5
Obese≥ 30

Healthy weight range for 5ft 1in: 98 lbs – 132 lbs

Metric: 154.9 cm, 39.0 kg

📏 Healthy waist circumference for your height: 35" – 40" (below 40" for male)

So you're 5ft 1in and weigh 86lbs. Your BMI is 16.2, which falls into the Underweight 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 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.

Source: CDC Adult BMI Guidelines (2024)

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 12.2 lbs would bring your BMI to 18.5, the start of the next category.

⬆️ Gaining approximately 12.2 lbs would put you in the Normal BMI range.

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.

Source: CDC Adult BMI Guidelines (2024)

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 14-year-old boy at 5ft 1in and 86lbs, a BMI of 16.2 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

A BMI of 16.2 for a male with height 5ft 1in and weight 86lbs falls into the Underweight category.

Recommendations

General Health

A BMI of 16.2 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 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

Diet & Nutrition

At 5ft 1in and 86lbs, a BMI of 16.2 indicates underweight. For men of this height, the CDC recommends a healthy weight range of 97-131lbs. Focus on protein-rich foods and resistance training to build muscle mass.

Goals

For a man at 5ft 1in, the CDC recommends a healthy weight range of 97-131lbs. At 86lbs, you're below this range. Consider setting a goal to gain 5-10% of your current weight over the next 3-6 months.

Always consult a healthcare provider for personalized medical advice.

Frequently Asked Questions

How do I calculate my BMI at 5ft 1in and 86lbs?
BMI is calculated as weight (lbs) × 703 ÷ height (in)². For a 5ft 1in man at 86lbs, the calculation is 86 × 703 ÷ 61² = 16.2, which is Underweight.
What health risks are associated with a BMI of 16.2 for a 5ft 1in man?
For a man at 5ft 1in with a BMI of 16.2 (Underweight), the underweight range is associated with increased risk of bone density loss and immune function decline. Regular check-ups and monitoring are recommended.
Am I at a healthy weight at 5ft 1in and 86lbs?
At 5ft 1in and 86lbs, a man's BMI is 16.2, which is Underweight. This is below the CDC's healthy weight range of 18.5-24.9. Consider consulting a healthcare provider.
What percentage of men have a BMI of 16.2 at 5ft 1in?
The CDC reports that approximately 1.5% of men fall into the Underweight BMI category. Your BMI of 16.2 at 5ft 1in and 86lbs places you there.

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💡 About this calculation: BMI = (86 × 703) ÷ (61 × 61) = 16.2 | Metric: 154.9 cm, 39.0 kg

📖 Recommended reading:

Based on CDC and WHO adult BMI standards. This information is for educational purposes and does not replace professional 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: 2026-07-15

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