Your ideal
proportion, calculated.
Based on the Adonis Index and the classic golden ratio shoulder-to-waist proportion.
This index does not measure health, but visual proportion. It is widely used by bodybuilders and fitness enthusiasts to track the evolution of a V-taper physique. Learn more
Understand your
body proportion
The science and aesthetics behind SymScore.
The Adonis Index
The "Adonis Index" concept relates shoulder circumference to waist circumference, seeking the proportion that Renaissance artists and ancient Greeks associated with the ideal male body. For women, the focus is similar — shoulders slightly wider than the waist.
The golden ratio in the body
The ratio φ (phi) ≈ 1.618 appears in many natural proportions. When applied to the human body, it suggests that shoulders ~1.6× wider than the waist (men) create a visual perception of greater attractiveness and strength. For women, ~1.4× is the most cited reference.
These values are classic aesthetic references, not medical rules.
Reference table
| Ratio (M) | Ratio (F) | Classification |
|---|---|---|
| ≥ 1.55 | ≥ 1.38 | Excellent |
| 1.40–1.54 | 1.25–1.37 | Good |
| 1.20–1.39 | 1.10–1.24 | Developing |
| < 1.20 | < 1.10 | Below Average |
How to measure correctly
Shoulders: Measure around the widest point of the shoulders, passing over the lateral deltoids, with arms relaxed at your sides.
Waist: Measure around the narrowest point of the torso, usually above the navel, without holding your breath.