Android/Gynoid Fat Ratio Calculator Formula

Understand the math behind the android/gynoid fat ratio calculator. Each variable explained with a worked example.

Use the Android/Gynoid Fat Ratio Calculator

Formulas Used

Android/Gynoid Ratio

ag_ratio = waist_inches / hip_inches

Waist-to-Hip Ratio

whr = waist_inches / hip_inches

Waist

waist_cm = waist_inches * 2.54

Variables

VariableDescriptionDefault
waist_inchesWaist Circumference(inches)36
hip_inchesHip Circumference(inches)40

How It Works

Android vs. Gynoid Fat Distribution

Android (apple shape): Fat concentrated around the waist and abdomen. Associated with higher metabolic and cardiovascular risk.

Gynoid (pear shape): Fat concentrated around the hips and thighs. Generally lower metabolic risk.

Ratio = Waist / Hip

| Ratio (Male) | Classification | |---|---| | <0.90 | Gynoid (lower risk) | | 0.90-0.99 | Intermediate | | >1.00 | Android (higher risk) |

Worked Example

A male with 36-inch waist and 40-inch hips.

waist_inches = 36hip_inches = 40
  1. 01Ratio = 36 / 40 = 0.90
  2. 02This falls at the boundary between gynoid and intermediate
  3. 03Waist in cm = 36 x 2.54 = 91.4 cm

Ready to run the numbers?

Open Android/Gynoid Fat Ratio Calculator