Ralph Lauren Clothing Size Chart
Ralph Lauren runs true to size.
Ralph Lauren Dress Size Conversion — US to UK
Numeric size conversion for Ralph Lauren women's clothing, with body measurements in cm or inches. Find your exact US, UK, EU, and AU size.
| US | UK | EU | AU | Bust (cm) | Waist (cm) | Hips (cm) |
|---|---|---|---|---|---|---|
| 0 | 4 | 34 | 4 | 83.8 | 66 | 91.4 |
| 2 | 6 | 36 | 6 | 86.4 | 68.6 | 94 |
| 4 | 8 | 38 | 8 | 88.9 | 71.1 | 96.5 |
| 6 | 10 | 40 | 10 | 91.4 | 73.7 | 99.1 |
| 8 | 12 | 42 | 12 | 94 | 76.2 | 101.6 |
| 10 | 14 | 44 | 14 | 96.5 | 78.7 | 104.1 |
| 12 | 16 | 46 | 16 | 100.3 | 82.6 | 108 |
| 14 | 18 | 48 | 18 | 104.1 | 86.4 | 111.8 |
| 16 | 20 | 50 | 20 | 109.2 | 91.4 | 116.8 |
| 18 | 22 | 52 | 22 | 114.3 | 96.5 | 121.9 |
Ralph Lauren Men's Size Chart
| Size | Chest (cm) | Waist (cm) | Hips (cm) |
|---|---|---|---|
| XXS | 68.5–78.8 | 60.9–66 | — |
| XS | 78.7–86.4 | 66–71.1 | — |
| S | 88.9–94 | 71.1–76.2 | — |
| M | 96.5–101.6 | 78.7–86.4 | — |
| L | 106.7–114.3 | 88.9–96.5 | — |
| XL | 116.8–121.9 | 101.6–106.7 | — |
| XXL | 124.5–132.1 | 109.2–114.3 | — |
Ralph Lauren Women's Size Chart
| Size | US | EU | UK | Chest (cm) | Waist (cm) | Hips (cm) |
|---|---|---|---|---|---|---|
| XS | 0-2 | 34-36 | 4-6 | 83.8–86.4 | 66–68.6 | 91.4–94 |
| S | 4-6 | 38-40 | 8-10 | 88.9–91.4 | 71.1–73.7 | 96.5–99.1 |
| M | 8-10 | 42-44 | 12-14 | 94–96.5 | 76.2–78.7 | 101.6–104.1 |
| L | 12-14 | 46-48 | 16-18 | 100.3–104.1 | 82.6–86.4 | 108–111.8 |
| XL | 16-18 | 50-52 | 20-22 | 109.2–114.3 | 91.4–96.5 | 116.8–121.9 |
Data verified Jul 2026 · Official size guide · See an error? Report it
Measurements above are Ralph Lauren's own published figures, last checked 2026-07. Individual garments and fits still vary — check Ralph Lauren's official size chart for exact measurements.
Ralph Lauren Sizing & Fit Guide
Ralph Lauren runs true to generous US sizing, and their men's chart bears that out — an L covers a 106.7-114.3 cm chest, well above the 102 cm a generic international L implies. Polo Ralph Lauren has three fits: Slim, Custom-Slim, and Classic, with 7.6 cm of chest between each step. Measurements below are Ralph Lauren's own published figures.
Ralph Lauren US to UK Size Guide
A Ralph Lauren US size 6 is equivalent to a UK 10. The UK conversion is simple: add 4 to the US size. So US 4 = UK 8, US 6 = UK 10, US 8 = UK 12, and US 10 = UK 14. EU sizing is the step people get wrong. Ralph Lauren's own women's chart maps US 6 to EU 40 — not the EU 36 that a generic US-to-EU table would give you. Their published run is US 0 = EU 34, US 2 = EU 36, US 4 = EU 38, US 6 = EU 40, US 8 = EU 42, continuing in steps of two. Ralph Lauren also lists FR, DE, IT and ES separately, because those markets do not share one number: the US 6 that is an EU 40 is an IT 42 and a DE 38. If you are shopping a European Ralph Lauren site, convert from the numbers in the chart above rather than from a general European conversion.
What Ralph Lauren's Measurements Actually Are
Ralph Lauren publishes body measurements as ranges in centimetres, and the chart above reproduces them exactly. Women's sizes: XS covers a 83.8-86.4 cm bust, S covers 88.9-91.4 cm, M covers 94-96.5 cm, L covers 100.3-104.1 cm, and XL covers 109.2-114.3 cm. Each alpha size spans two numeric sizes, which is why the US column shows 0-2, 4-6 and so on. Men's tops: S is a 88.9-94 cm chest, M is 96.5-101.6 cm, L is 106.7-114.3 cm, XL is 116.8-121.9 cm, and XXL is 124.5-132.1 cm. Ralph Lauren's men's L is noticeably roomier than a generic international L (which is usually quoted around 102 cm), which is the single most useful thing to know before ordering.
How Ralph Lauren Sizing Varies by Line and Fit
Ralph Lauren operates several lines with slightly different fits. Polo Ralph Lauren offers Slim Fit (closest to body), Custom-Slim Fit, and Classic Fit (standard). The brand publishes the exact difference between them: Custom-Slim Fit is 7.6 cm smaller in the chest than Classic Fit, 2.5 cm tighter across the shoulder, and 3.8 cm shorter in sleeve, front and back length. Slim Fit takes another 7.6 cm out of the chest versus Custom-Slim, with the same shoulder but a further 1 cm off the sleeve. Lauren Ralph Lauren, the more affordable line, tends to run slightly more generous than Polo. Purple Label, the luxury tier, uses Italian-influenced tailoring and may run slimmer through the torso. The numeric size conversion stays the same across every line — only the silhouette changes.
Tips for Shopping Ralph Lauren Online
When ordering Ralph Lauren from a US site and shipping to the UK (or vice versa), check which sizing system the site uses. US sites list US sizes, while UK/EU sites list local sizes. Use the numeric conversion table above to find your match. If you are between sizes, Classic Fit runs generous, so stick with your usual size; for Slim Fit, size up. Ralph Lauren rarely offers free international returns, so getting the right size the first time saves hassle and shipping costs.