BodyShapeCalculator.net vs Proportion Studio
Two free body-proportion calculators with eight ratios each — but not the same eight. One adds a 3D visualizer and a body-shape result; the other focuses on sitting height, shoulder-to-hip, and a canon-vs-measured drawing reference.
At a glance
| Criterion | Proportion Studio | BodyShapeCalculator.net |
|---|---|---|
| The eight ratios | Heads tall, leg-to-height, sitting-height (Cormic), shoulder-to-hip, shoulder-to-waist, arm span, WHR, WHtR | WHR, WHtR, chest-to-waist, chest-to-hip, shoulder-to-waist, leg length, arm span, heads tall |
| 3D visualizer | No — diagrams and tables only | Yes — opens the measurements in a rotatable body model |
| Body-shape output | No — this site deliberately does not classify shape | Yes — seven female and five male shapes, using the same rules as its body type calculators |
| Male / female mode | Sex-neutral inputs; WHR shows both WHO reference points | Female / male mode with sex-specific labels and WHR points |
| Sitting height / Cormic index | Yes — the torso-to-leg share | Not one of the eight ratios |
| Shoulder-to-hip | Yes — circumference ratio, clearly labelled as not a width ratio | Chest-to-hip and chest-to-waist instead |
| Drawing guide | A dedicated drawing page with the 8-head landmark table | A drawing section and head-unit chart on the calculator page |
| Canon vs measured | Explicit: 7.5/8/8.5 canon vs the 2020 Vitruvian Man data | Mentions 7–7.5 heads and the 8-head canon; less measured-data comparison |
| Price | Free | Free |
| Best for | Sitting height, shoulder-to-hip, and a canon-vs-measured drawing reference | A 3D visualizer and a body-shape result in one tool |
What BodyShapeCalculator.net does well
BodyShapeCalculator.net is a broader body tool. Its proportions page takes height, waist and hips for a first result, then optional chest or bust, shoulder, inseam, arm span and head height. It returns eight ratio cards with reference ranges and a gauge, and it can open the same measurements in a rotatable 3D body model. It also names a body shape — seven female and five male shapes — and links to dedicated shape guides.
If you want to see the numbers on a model, compare two bodies, or combine proportions with a shape result, that is a strong feature set. The page is explicit that the reference ranges describe rather than grade, and that the measurements stay in the browser.
What Proportion Studio does differently
Proportion Studio is narrower and more measurement-first. It uses eight ratios, but a different set: it adds the sitting-height (Cormic) index, which describes the torso-to-leg share, and a shoulder-to-hip circumference ratio. It deliberately does not classify body shape; that is a separate method with different inputs.
The other difference is the drawing layer. The site has a dedicated drawing guide with the 8-head landmark table and a printable page, and it keeps the artistic canon separate from the measured data. The 2020 Vitruvian Man re-analysis (63,623 men, 1,385 women) is used to show how measured head height and arm span differ from the 7.5/8/8.5 canon.
The eight ratios are not the same eight
This is the part that matters most. Both pages say “eight ratios”, but the sets overlap only partly:
- Shared: heads tall, leg length, shoulder-to-waist, arm span, WHR, WHtR.
- Only BodyShapeCalculator.net: chest-to-waist and chest-to-hip.
- Only Proportion Studio: sitting-height (Cormic) and shoulder-to-hip.
If you want chest-to-waist or chest-to-hip, the other site has them. If you want the Cormic index or a circumference-based shoulder-to-hip ratio, this site has them. “Eight” is a count, not a standard.
Which one to use
Use BodyShapeCalculator.net if you want a 3D visualizer, a male/female mode, a body-shape result and a broad set of body tools in one place.
Use Proportion Studio if you want the sitting-height/Cormic ratio, a shoulder-to-hip circumference ratio, a clear separation between canon and measured data, and a drawing guide that uses the same numbers.
What this comparison did not test
We did not run a ground-truth accuracy test, compare the 3D model’s geometry, audit ad load or benchmark speed. The facts above come from the public page as of 23 October 2026. Both sites are free to use; neither paid for this page.
Comparison questions
Both sites say eight ratios. Are they the same eight?
No. BodyShapeCalculator.net uses WHR, WHtR, chest-to-waist, chest-to-hip, shoulder-to-waist, leg length, arm span and heads tall. Proportion Studio uses heads tall, leg-to-height, sitting-height (Cormic), shoulder-to-hip, shoulder-to-waist, arm span, WHR and WHtR. Only heads tall, leg-to-height, shoulder-to-waist, arm span, WHR and WHtR overlap.
Is a 3D visualizer better than a diagram?
They answer different needs. A 3D model is useful for seeing a body in space and comparing two sets of measurements. A diagram plus a reference band is easier to cite, print and check. Neither is inherently more accurate; the input measurements are the limiting factor.
Why does Proportion Studio not include body shape?
Because shape classification is a different method with a different set of rules. Mixing shape and proportion in one tool can make a proportion result sound like a shape verdict. The site keeps them separate and points to a shape method only in general terms.
Primary links
- BodyShapeCalculator.net — checked 23 October 2026.
- Proportion Studio — the page you are on.