Our Mission
Most body calculators online give you a single label with no explanation, use outdated formulas or hide results behind sign-ups. ShapeCalculator exists to do the opposite: give everyone accurate, explained, visual results for free, without collecting their data.
We believe understanding your proportions should help you feel informed, not judged. Body shape, body type and clothing size describe how a body is built and how clothes fit it; they say nothing about a person’s worth.
What We Offer
ShapeCalculator brings together 16 calculators in four groups:
- Body shape and type: the Body Shape Calculator, Female Body Shape Calculator, Male Body Shape Calculator and Body Type Calculator.
- Health and body composition: the Waist-to-Hip Ratio Calculator, Waist-to-Height Ratio Calculator, Body Fat Calculator, Lean Body Mass Calculator, Ripped Body Calculator, Body Fat to Weight Calculator and Body Measurement Calculator.
- Clothing sizes: the Dress Size Calculator, Jeans Size Calculator and Bra Size Calculator.
- Face and features: the Face Shape Calculator and Eye Shape Calculator.
Our Methodology
Every calculator is built on a published, widely used method, and each calculator page explains its formula, a worked example and its limitations. Key sources include:
- The Female Figure Identification Technique (FFIT) from apparel research for female body shapes.
- World Health Organization guidance on waist circumference and waist-to-hip ratio.
- The U.S. Navy circumference method (Hodgdon and Beckett) for body fat.
- American Council on Exercise body fat categories.
- The Boer, James and Hume equations for lean body mass.
- Ashwell’s boundary values and NICE guidance for waist-to-height ratio.
We test every calculator with worked examples checked by hand, and we review formulas and thresholds when new guidance is published.
Privacy by Design
All calculations run in your browser. Your measurements are never sent to a server, stored in a database or shared. Your last inputs are remembered only on your own device so you can return to them, and you can clear them at any time with the Reset button. Read our Privacy Policy for full details.
Accuracy
Results depend on careful measuring. Clothing size results are a starting point because brand sizing varies, and every calculator page lists its limitations so you know how to read your result.
Contact Us
We welcome corrections, suggestions and feedback. If you spot an error or want a new calculator, please get in touch.