A Body Shape Index (ABSI) Calculator

Estimate body shape risk from waist, BMI and height.

Waist circumference

BMI (kg/m²)

Height

ABSI 0.0772

Formula: ABSI = waist ÷ (BMI^(2/3) × height^(1/2))

Step-by-step with your numbers:

1. Values used:

2. Waist circumference = 85

3. BMI = 24 kg/m²

4. Height = 175

6. ABSI = 0.0772

Did we solve your problem today?

ABSI captures abdominal fat relative to body size — a shape-based risk indicator. Informational only, not medical advice.

The math behind it

ABSI = waist (m) ÷ (BMI^(2/3) × height^(1/2) in m). Higher values indicate more central fat for a given size.

85 cm waist, BMI 24, 175 cm → ~0.078.

Better than BMI?

It adds waist information that BMI alone misses.