Use this Abdominal Volume Index Calculator to calculate AVI from your waist and hip measurements. Enter cm or inches to get your AVI instantly, along with the formula and result meaning.
Interpretation: AVI is mainly used for comparative body-fat distribution screening rather than standalone diagnosis. Higher values generally suggest greater central fat accumulation. (Inputs convert to cm for calculation).
Use this Abdominal Volume Index (AVI) Calculator to estimate your abdominal fat distribution by entering your waist and hip measurements. You can enter your values in either centimeters or inches, and the calculator automatically converts your measurements to centimeters before applying the standard AVI formula. This tool is designed to provide a quick and easy calculation for personal screening purposes, not as a medical diagnosis.
What This AVI Calculator Uses
| Tool Element | What This Calculator Uses |
|---|---|
| Inputs | Waist circumference, hip circumference |
| Supported units | Centimeters (cm), inches (in) |
| Internal calculation unit | Centimeters |
| Formula | AVI = [2 × Waist² + 0.7 × (Waist − Hip)²] / 1000 |
| Output | Abdominal Volume Index (AVI) |
| Intended use | Comparative abdominal fat distribution screening |
| Not for | Medical diagnosis or treatment decisions |
How to Use the Abdominal Volume Index Calculator
- Enter your waist circumference in the designated field.
- Enter your hip circumference into the second input box.
- Choose either centimeters (cm) or inches (in) for each measurement.
- Read your calculated AVI result instantly on the screen.
Measurement tips:
- Waist: measure at the narrowest point of your torso or just above the navel.
- Hips: measure at the widest point around the buttocks while standing straight.
Abdominal Volume Index Formula
If you choose to enter your dimensions in inches, the calculator will automatically convert those figures into centimeters first. The AVI formula specifically requires metric units to work correctly and provide an accurate estimate of your abdominal fat distribution.$$AVI = \frac{2 \times \text{Waist}^2 + 0.7 \times (\text{Waist} – \text{Hip})^2}{1000}$$
| Symbol | Meaning | Unit used in formula |
|---|---|---|
| AVI | Abdominal Volume Index | Index |
| Waist | Waist circumference | cm |
| Hip | Hip circumference | cm |
Example AVI Calculation
Example inputs:
- Waist = 90 cm
- Hip = 100 cm
Example working:$$AVI = \frac{2 \times 90^2 + 0.7 \times (90 – 100)^2}{1000}$$$$AVI = \frac{2 \times 8100 + 0.7 \times (-10)^2}{1000}$$$$AVI = \frac{16200 + 0.7 \times 100}{1000}$$$$AVI = \frac{16200 + 70}{1000}$$$$AVI = 16.27$$
So, entering a waist of 90 cm and a hip circumference of 100 cm directly gives an AVI of 16.27.
Abdominal Volume Index Reference Table
If you prefer to quickly look up standard values without typing in exact numbers, you can use the precomputed combinations below. This chart displays how various common waist and hip dimensions interact to produce different index outcomes.
| Waist (cm) | Hip (cm) | AVI |
|---|---|---|
| 70 | 90 | 10.48 |
| 75 | 95 | 12.08 |
| 80 | 100 | 13.72 |
| 85 | 100 | 14.54 |
| 90 | 100 | 16.27 |
| 95 | 105 | 18.03 |
| 100 | 110 | 19.87 |
| 105 | 115 | 21.81 |
| 110 | 120 | 23.87 |
What Your AVI Result Means
Higher calculated values generally suggest a greater accumulation of central fat and a more pronounced abdominal body-fat distribution. This metric is primarily utilized as a comparative anthropometric screening tool to observe physical changes over time, rather than functioning as a standalone diagnosis.
| AVI Result Use | What It Can Help With |
|---|---|
| Comparing body-fat distribution over time | Track waist and hip circumference change patterns |
| Screening-style context | Adds physical context beyond simple body weight alone |
| Comparing with other body metrics | Useful alongside BMI, WHR, or waist-to-height ratio |
| Clinical diagnosis | Not sufficient by itself; requires professional medical evaluation |
AVI vs Other Body Measurement Tools
This specific index is highly useful when you want a waist-and-hip-based estimation of your abdominal fat distribution. Comparing these metrics helps you choose the right measurement method for your tracking, as other indices like BMI or WHtR focus on different aspects of body size and shape.
| Metric | Uses | Inputs | What It Focuses On |
|---|---|---|---|
| AVI | Abdominal Volume Index | Waist, hip | Central fat distribution |
| Waist-to-Hip Ratio (WHR) | Body shape screening | Waist, hip | Relative waist versus hip proportion |
| Waist-to-Height Ratio (WHtR) | Central obesity screening | Waist, height | Waist size relative to overall height |
| BMI | General body size screening | Weight, height | Overall body mass, not fat distribution |
Measurement and Unit Notes
| Input | Accepted Units | Internal Calculation Unit |
|---|---|---|
| Waist circumference | cm, in | cm |
| Hip circumference | cm, in | cm |
For the most consistent measurement results, use a flexible soft measuring tape instead of a rigid ruler. Measure directly against the body without compressing the skin, and keep the measuring tape completely level all the way around your torso and hips.
Calculator Notes and Limits
- Input measurements must always be greater than zero.
- Extremely large or physically impossible values are blocked by the system.
- Values falling far outside typical adult physiological ranges may trigger a warning message.
- This calculator is strictly intended for educational and screening-style use.
Use This AVI Calculator for Fast Waist-and-Hip Screening
You can rely on this tool whenever you want a quick estimate of your abdominal fat distribution derived directly from your waist and hip measurements. For the most beneficial and practical use, always take consistent physical measurements and compare your index results over time rather than treating a single calculated number as a clinical diagnosis.
Related Tools & Calculators: