Clothing and pattern planning
Use a broad shape label as one starting point when comparing garment cuts or sewing-pattern adjustments.
Body Type Calculator
Enter bust or chest, waist, and hip measurements → Get a body-shape estimate, proportion ratios, and boundary context.
Estimate Body Shape from Measurements
Use three measurements taken in the same unit. This is a clothing-style shape estimate, not a medical or somatotype test.
Your body-shape estimate will appear here
Complete all three measurements to compare their proportions.
Rule set used: oval when waist is at least 95% of the larger torso measurement; hourglass when bust and hips are within 5% and waist is at most 75% of the smaller; otherwise a 5% bust–hip difference identifies triangle or inverted triangle, with remaining results labeled rectangle.
How to Use Body Type Calculator
1
Choose One Measurement Unit
Select inches or centimetres and use that same unit for every field.
2
Measure Three Circumferences
Enter bust or chest, natural waist, and fullest hip measurements without pulling the tape excessively tight.
3
Read the Rule-Based Result
The body-shape label, reason, and two useful ratios appear automatically.
Body Type Calculator Features
- Instant shape estimate from three measurements
- Works with inches or centimetres because it compares ratios
- Displays bust-to-waist and waist-to-hip ratios
- Publishes every classification threshold used
Common Use Cases
Track proportion changes
Repeat the same measurement technique over time and compare ratios without turning the label into a health judgment.
Understand a body-shape result
See which measurement relationship triggered a label instead of relying on an opaque body type test.
Limits and Important Notes
How This Body Type Calculator Works
All three inputs must use the same unit. Because the rules compare proportions, inches and centimetres produce the same classification when the measurements are equivalent.
The calculator checks the oval and hourglass rules first, then compares bust or chest with hips. Measurements near a threshold can change category with a small measuring difference.
Formula
Oval: waist ≥ 95% of max(bust, hips); hourglass: bust and hips within 5% and waist ≤ 75% of min(bust, hips); triangle/inverted: hips or bust ≥ 105% of the other; otherwise rectangle
Example
For bust 36, waist 27, and hips 36, bust and hips are equal and the waist is exactly 75% of either measurement. The published rule therefore returns hourglass.
- When comparing clothing proportions or tracking measurements, use the same unit and measuring technique for bust or chest, waist, and hips; the result is a descriptive shape label, not a health assessment.
- These are site-defined descriptive thresholds, not medical standards or scientific diagnoses.
- Tape placement, posture, clothing, breathing, and rounding can change a result near a 5% or 75% boundary.
- A shape label does not determine health, attractiveness, athletic ability, metabolism, or the clothes a person should wear.
- The calculator does not infer ectomorph, mesomorph, or endomorph status.