How to Calculate Dress Size
What is Dress Size?
Dress size varies significantly between countries. A UK size 12 is a US size 8 and a European size 40. Sizing also varies between brands (vanity sizing means the same measurements may be a different size label in different shops). Always measure yourself rather than relying on the label.
Formula
- US
- UK size − 4 (UK 12 = US 8) — UK size − 4 (UK 12 = US 8)
- UK
- EU 40) — EU 40)
Step-by-Step Guide
- 1Measure bust (fullest part), waist (narrowest), and hips (widest)
- 2UK sizes are even numbers (6–26). UK size = bust measurement in inches − 28
- 3US sizes = UK size − 4 (UK 12 = US 8)
- 4EU sizes = UK size + 28 (UK 12 = EU 40)
Worked Examples
Frequently Asked Questions
What is Dress Size?
Dress size varies significantly between countries. A UK size 12 is a US size 8 and a European size 40
How accurate is the Dress Size calculator?
The calculator uses the standard published formula for dress size. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.
What units does the Dress Size calculator use?
This calculator works with inches. You can enter values in the units shown — the calculator handles all conversions internally.
What formula does the Dress Size calculator use?
The core formula is: UK sizes are even numbers (6–26). UK size = bust measurement in inches − 28. Each step in the calculation is shown so you can verify the result manually.
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