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Health Calculators

Ponderal Index Calculator

Verified formula Updated Jun 2026 Private — runs on your device

Enter details
kg
cm
Verified formula Private

Ponderal index

14.25

BMI (for comparison)
24.2

For general information only — not financial, tax, legal or medical advice. Verify before you rely on it.

How to use the Ponderal Index Calculator

The Ponderal Index Calculator works out your ponderal index, along with 1 related figure in an instant. Enter weight and height and the result updates as you type — it is free, needs no sign-up, and runs entirely in your browser so your figures stay private.

  1. Enter the weight.
  2. Enter the height.
  3. Read off your ponderal index, together with bmi (for comparison) — the calculator updates automatically, with no button to press.

Formula

The Ponderal Index Calculator uses the formula:

Ponderal index = Weight ÷ ((Height ÷ 100) ^ 3)

Worked example

For example, with weight of 70 kg and height of 170 cm, the ponderal index is 14.25.

Inputs used
Weight 70 kg
Height 170 cm
Results
Ponderal index 14.25
BMI (for comparison) 24.2

Results are estimates for educational use, not professional advice.

Key terms explained

BMI
Body Mass Index — weight in kilograms divided by height in metres squared, a screening measure of body weight.

Frequently asked questions

The ponderal index is weight in kilograms divided by height in metres cubed (kg/m³). For 70 kg and 1.70 m it is about 14.25.

BMI divides weight by height squared, while the ponderal index uses height cubed. This makes the ponderal index more consistent across very tall or very short people.

For adults, values roughly between 11 and 15 kg/m³ are often considered normal, though it is used less commonly than BMI.

It is often used for newborns to assess body proportionality, and sometimes for adults at the extremes of height where BMI is less reliable.

The Ponderal Index Calculator uses the formula: Ponderal index = Weight ÷ ((Height ÷ 100) ^ 3). For example, with weight of 70 kg and height of 170 cm, the ponderal index is 14.25.

Enter the weight. Enter the height. Read off your ponderal index, together with bmi (for comparison) — the calculator updates automatically, with no button to press.

Healthy Weight Targets and Body Ratios Beyond BMI

BMI is only a starting point — set a realistic target weight, use body ratios like waist-to-height and the ponderal index, and track progress the right way for a sharper picture of health.

4 min read

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