BMI Calculator
BMI calculator
Your BMI is......
| BMI | Classification |
|---|---|
| less than 18.5: | Underweight |
| 18.5 - 24.9: | Normal weight |
| 25 - 29.9: | Overweight |
| 30 - 34.9: | Class I Obese |
| 35 - 39.9: | Class II Obese |
| 40 upwards: | Class III Obese |
A useful starting point for determining a healthy to unhealthy weight range is the Body Mass Index, or BMI, a measurement derived from height and body weight (mass). It offers information on the thickness and thinness of the physical body and may be able to provide crucial insights regarding general health.
The Science Behind BMI
BMI acts as an aid to getting body weight, which has been connected to some possible health issues. Higher BMI values have been linked in studies to an increased risk of illnesses like cardiovascular disease, type 2 diabetes, hypertension, and several types of cancer.
It is calculated with a mathematical formula in a metric system that divides the body’s weight (in kilograms) by the square of height (in meters). The result is a single number determining current weight: underweight, normal weight, overweight, or obese.
How to Determine Weight?
Weight is a property of matter and is the force that gravity applies to an object. In the context of scientific health studies, weight fluctuations may also be a sign of changes in growth patterns, energy balance, or fat accumulation. Environmental circumstances, exercise levels, and nutrition are some factors that frequently affect these changes.
Below is the classification of BMI range measures in kg/m2:
BMI Range (kg/m²) | Classification |
Below 18.5 | Underweight |
18.5 – 24.9 | Normal weight |
25.0 – 29.9 | Overweight |
30.0 – 34.9 | Obesity class I |
35.0 – 39.9 | Obesity class II |
40.0 and above | Obesity class III |
Steps in Getting The BMI
Step 1: Measure Weight and Height
We get, in this example, a weight of 70 kg. and height in 1.75m
Step 3: Use the BMI Formula
The formula for BMI is:
BMI = Weight (kg) ÷ [Height (m) × Height (m)]
Step 4: Do the Math
Now, we’ll input the numbers like this BMI = 70 (kg) ÷ [1.75 (m) × 1.75 (m)]. First, multiply the height by itself:
1.75×1.75=3.06251.75 \times 1.75 = 3.06251.75×1.75=3.0625. Then divide the weight by this number:
Step 5: Interpret the Result
A BMI of 22.86 is in the Normal weight range (18.5–24.9).
Summary
Using a BMI calculator to assess weight becomes essential for determining health issues linked to weight. In scientific study, it can be a useful instrument. By tracking a test subject’s BMI over time in a controlled experiment, researchers can examine how weight gain or decrease affects different physiological processes.
