Lynell Macknight
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Dianabol With TRT?
How to Calculate Your Body Mass Index (BMI)
Body Mass Index (BMI) is a quick way to estimate whether you’re in a healthy weight range based on your height and weight. It’s widely used by health professionals as an initial screening tool—though it doesn’t account for muscle mass, bone density, or body composition.
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1️⃣ What Is BMI?
Definition: A simple ratio of weight (kg) to the square of height (m²).
Purpose: Gives a rough estimate of whether your weight is under‑, normal‑, overweight, or obese for your height.
> ⚠️ BMI is not a diagnostic tool. It doesn’t measure body fat directly.
2️⃣ How To Calculate BMI
Formula
[
\textBMI = \frac\textWeight (kg)\left(\textHeight (m)
ight)^2
]
Example Calculation
Metric Value
Weight 80 kg
Height 1.75 m
[
\textBMI = \frac80(1.75)^2 \approx \frac803.0625 \approx 26.1
]
Quick Conversion (Imperial Units)
If you have weight in pounds and height in inches:
[
\textBMI = \frac\textWeight (lb) \times 703(\textHeight (in))^2
]
For example, 176 lb at 68 inches:
[
\textBMI = \frac176 \times 703(68)^2 \approx 26.1
]
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How to Interpret the Result
BMI Category (World Health Organization)
\< 18.5 Underweight
18.5 – 24.9 Normal weight
25 – 29.9 Overweight
30 – 34.9 Obesity class I
35 – 39.9 Obesity class II
≥ 40 Obesity class III
> Note: BMI is a screening tool only; it does not replace a full medical assessment.
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Practical Tips
Accuracy matters: Use a calibrated scale and a ruler or tape measure that can read to the nearest centimeter.
Consistency: Weigh yourself at the same time of day (morning, before eating) for trend comparison.
Track progress: Log your height, weight, BMI, and any changes in lifestyle (diet, exercise) to see how they influence your numbers.
Quick Reference Table
Height (cm) Weight (kg) BMI
150 50 22.2
165 55 20.3
180 70 21.6
190 80 22.1
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Remember: BMI is a general indicator—consult healthcare professionals for personalized assessments and guidance on achieving your health goals!
