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Learn more →Ponderal Index Calculator (kg/m³)
The ponderal index calculator estimates your corpulence index using weight in kilograms divided by height in meters cubed (kg/m³). It is an alternative to BMI that scales more reliably across very short and very tall people.
Enter your height and weight to see your ponderal index.
How it works
What is the ponderal index?
The ponderal index, also called the corpulence index, measures leanness using the formula weight (kg) ÷ height (m)³. Because it divides by height cubed instead of height squared, it stays more consistent for people who are unusually short or tall.
The result is expressed in kg/m³ and gives a quick sense of body mass relative to stature.
Ponderal index vs. BMI
BMI divides weight by height squared, which can over- or under-estimate corpulence at extreme heights. The ponderal index uses height cubed to reduce that bias, making it useful for tall athletes and very short individuals.
Both metrics are screening tools and do not measure body fat directly.
Frequently asked questions
›What is a normal ponderal index?
For most adults the ponderal index falls roughly between 11 and 15 kg/m³, but ranges vary by age, sex and body type.
›How is the ponderal index calculated?
It is weight in kilograms divided by height in meters cubed: weight (kg) ÷ height (m)³.
›Why use the ponderal index instead of BMI?
It scales better at very short and very tall heights, where BMI can be misleading.
›What units does the result use?
The ponderal index is shown in kilograms per cubic meter (kg/m³).
›Is this medical advice?
No. This is a general estimate for information only and is not a substitute for professional medical advice.
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