Android/Gynoid Fat Ratio Calculator Formula

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

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 <0.90Gynoid (lower risk) 0.90-0.99Intermediate >1.00Android (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

Frequently Asked Questions

What does android fat distribution mean?

Android fat distribution means fat is concentrated in the upper body and abdomen (apple shape). This pattern is more common in men and is linked to higher cardiovascular risk.

Is gynoid fat distribution healthier?

Generally yes. Gynoid (pear-shaped) fat distribution, with fat in the hips and thighs, is associated with lower risk of metabolic syndrome and heart disease.

Can I change my fat distribution?

You cannot spot-reduce fat, but overall fat loss through exercise and diet tends to reduce abdominal fat. Genetics largely determine distribution patterns.