UK Size to Italian Size Conversion Table
| UK Size (UK) | Italian Size (IT) | Reference Benchmark | Formula Step |
|---|---|---|---|
| 4 UK | 40 IT | Petite Savile Row silk faille cocktail dress | IT = 4 + 36 = 40 |
| 6 UK | 42 IT | Fitted British equestrian tailored blazer | IT = 6 + 36 = 42 |
| 8 UK | 44 IT | Printed floral cotton lawn garden party dress | IT = 8 + 36 = 44 |
| 10 UK | 46 IT | Double-breasted weatherproof city trench coat | IT = 10 + 36 = 46 |
| 12 UK | 48 IT | Scottish highland cashmere crewneck knitwear | IT = 12 + 36 = 48 |
| 14 UK | 50 IT | Tailored wool tweed country overcoat | IT = 14 + 36 = 50 |
| 16 UK | 52 IT | Structured British corporate trousers & blazer | IT = 16 + 36 = 52 |
| 18 UK | 54 IT | Draped satin formal evening gala ballgown | IT = 18 + 36 = 54 |
| 20 UK | 56 IT | Plus-fit English quilted countryside jacket | IT = 20 + 36 = 56 |
| 22 UK | 58 IT | Tailored British fine-wale corduroy trousers | IT = 22 + 36 = 58 |
| 24 UK | 60 IT | Heavyweight stormproof waxed utility parka | IT = 24 + 36 = 60 |
| 26 UK | 62 IT | Elegantly draped velvet evening caftan | IT = 26 + 36 = 62 |
| 28 UK | 64 IT | Insulated winter fleece-lined storm overcoat | IT = 28 + 36 = 64 |
| 30 UK | 66 IT | Bespoke Mayfair velvet dinner tuxedo | IT = 30 + 36 = 66 |
| 32 UK | 68 IT | Hand-embroidered luxury gala couture dress | IT = 32 + 36 = 68 |
| 34 UK | 70 IT | Atelier ceremonial embroidered evening robe | IT = 34 + 36 = 70 |
UK Size to Italian Size Formula & Unit Definitions
Because both the British BS 3666 and Italian garment grading systems increment by consistent 4 cm (or 2-inch) body circumference intervals, the mathematical relationship is an exact integer offset: IT = UK + 36.
Quick Estimation: Simply add 36 to your British dress size to determine your Italian size. For example, a UK 8 is an IT 44, a UK 10 is an IT 46, and a UK 12 is an IT 48.
UK Size (UK)
Source Standard- Standardized under British Standards Institution BS 3666 specifications.
- Graded on an even scale starting from UK 4 through UK 14 (Medium) to UK 24+.
- Garments feature tailored chest suppression, high armholes, and structured shoulders.
Italian Size (IT)
Target Standard- Standardized across Italian luxury ready-to-wear ateliers and fashion houses.
- Graded on an even scale offset 36 sizes above UK sizing (UK 10 equates to IT 46).
- Tailored with narrow shoulder spans, high armholes, and dramatic waist contouring.
Frequently Asked Questions
Q.How do you convert UK dress size to Italian IT size?
Add 36 to your UK dress size. For example, a UK 8 is an IT 44, and a UK 10 is an IT 46. To convert in the opposite direction, consult our IT to UK clothing converter.
Q.What is the formula for converting UK to Italian clothing sizes?
The official formula is IT = UK + 36. It translates the British BS 3666 sizing standard into the Italian apparel numbering system.
Q.What is a UK size 10 in Italian clothing?
A UK size 10 corresponds to an Italian size 46 (10 + 36 = 46). In Italian luxury ready-to-wear, this represents a standard Medium.
Q.How do Italian and British cuts compare?
Italian designer garments often feature narrower shoulder seams, closer-fitting bust lines, and slightly more tapered hips than British garments of corresponding size.