What is a normal BMI range?

A BMI between 18.5 and 24.9 is considered normal weight. Below 18.5 is underweight, 25-29.9 is overweight, and 30+ is classified as obese.

Is BMI accurate for everyone?

BMI is a screening tool, not a diagnostic measure. It may overestimate body fat in athletes with high muscle mass and underestimate it in older adults who have lost muscle.

What are the health risks of high BMI?

Higher BMI is associated with increased risk of heart disease, type 2 diabetes, high blood pressure, certain cancers, and joint problems.

How can I lower my BMI?

Combine a balanced, calorie-controlled diet with regular physical activity. Aim for gradual weight loss of 1-2 pounds per week. Consult a healthcare provider for personalized advice.

What is a normal BMI range?

A BMI between 18.5 and 24.9 is considered normal weight. Below 18.5 is underweight, 25-29.9 is overweight, and 30+ is classified as obese.

Is BMI accurate for everyone?

BMI is a screening tool, not a diagnostic measure. It may overestimate body fat in athletes with high muscle mass and underestimate it in older adults who have lost muscle.

What are the health risks of high BMI?

Higher BMI is associated with increased risk of heart disease, type 2 diabetes, high blood pressure, certain cancers, and joint problems.

How can I lower my BMI?

Combine a balanced, calorie-controlled diet with regular physical activity. Aim for gradual weight loss of 1-2 pounds per week. Consult a healthcare provider for personalized advice.

Educational Tool — Estimates for educational purposes only. Not financial advice.Disclaimer

Body Mass Index (BMI) is a simple screening tool that uses your height and weight to estimate body fat and categorize weight status. While not a diagnostic tool, it helps identify potential health risks.

BMI Calculator

Calculate your Body Mass Index (BMI) and understand your weight category.

January 2026 (CDC/NIH guidelines)

Weight

Height

5'8" = 68 inches

Unit System

Your Results

BMI

25.8

Visualization

Wally's Analysis

AI-powered interpretation of your results

AI Summary

Key Insights

Optimization

What-If Scenarios

Your BMI Result

25.8

BMI

Overweight

Risk Level: Moderate

1418.525303540+

Healthy Weight Range

122 lbs

Minimum

164 lbs

Maximum

6 lbs

To Lose

BMI Categories

Underweight0 – 18.5

Normal18.5 – 24.9

Overweight25 – 29.9

You

Obese I30 – 34.9

Obese II35 – 39.9

Obese III40 – 40+

Health Considerations

ℹ

BMI is a screening tool, not a diagnostic measure. It doesn't account for muscle mass, bone density, age, or sex.

✓

For a more complete health picture, consider waist circumference, body fat percentage, and overall fitness level.

⚠

Athletes and muscular individuals may have a high BMI but low body fat. Always consult your doctor for personalized guidance.

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AI Disclosure

Wally's Analysis uses GPT-4o-mini for educational interpretations. AI responses are not personalized financial advice and may be inaccurate. All core calculations are deterministic — AI only interprets results.AI Transparency →

Accuracy Commitment

Industry-standard formulas vetted against IRS, SSA, BLS, CFPB. Client-side calculations. Regularly updated.

This calculator provides estimates for informational purposes only and does not constitute medical advice. Consult a healthcare professional for personalized guidance.

Updated: January 2026 (CDC/NIH guidelines) · Methodology

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