BMI Formula:
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This calculator provides a precise BMI calculation by accounting for weight in 100g increments, offering more granularity than standard BMI calculators that typically only use whole kilograms.
The calculator uses the following formula:
Where:
Explanation: The equation calculates BMI while accounting for additional weight in 100g increments (0.1kg each) for more precise measurements.
Details: BMI is a simple index of weight-for-height that is commonly used to classify underweight, normal weight, overweight and obesity in adults.
Tips: Enter your base weight in kg, any additional 100g increments (if needed), and your height in meters. For example, if you weigh 70.3kg, enter 70kg and 3 increments.
Q1: Why use 100g increments?
A: For more precise measurements, especially useful when tracking small weight changes over time.
Q2: What are standard BMI categories?
A: Underweight (<18.5), Normal (18.5-24.9), Overweight (25-29.9), Obese (≥30).
Q3: When should I measure my weight?
A: For consistency, measure at the same time each day (morning after bathroom use is ideal).
Q4: Are there limitations to BMI?
A: BMI doesn't account for muscle mass, bone density, or fat distribution. Athletes may have high BMI without excess fat.
Q5: Should children use this calculator?
A: Children's BMI should be interpreted using age- and sex-specific percentiles, not adult categories.