UK to US Size Conversion Guide For Clothing and Footwear

Shopping across international stores can get confusing fast, especially when the same shirt or pair of shoes uses different sizing systems. The quick rule: UK sizes usually run one size smaller than US sizes for women, and one size smaller for men’s shoes and clothing. So if a shirt is a UK 10, it’s typically a US 6. If a men’s shoe is a UK 9, it’s usually a US 10.

Sell The Trend will give you simple charts, clear conversions, and examples you can use immediately when buying or selling products across the UK and US markets. Let’s start.

What is the Difference Between UK and US Sizes?

UK sizes generally run smaller than US sizes. In most cases, you add one size to convert a UK measurement into a US one. For example, a UK 8 in women’s clothing usually fits like a US 4, and a UK 9 in men’s shoes typically matches a US 10.

The gap comes from two different sizing standards. The UK uses the British measurement system, while the US uses its own scale, so the same item can be labeled with different numbers even if the fit is identical. That’s why many online shoppers feel confused when buying across borders.

Here’s the simplest way to look at it:

• Women’s clothing: UK size + 4 = US size
• Men’s clothing: UK size + 0–1 = US size (varies slightly by brand)
• Women’s shoes: UK size + 2 = US size
• Men’s shoes: UK size + 1 = US size
• Kids’ shoes: UK size + 1 = US size

Fit can still vary by material, brand, and style, but these general rules work well for most online shopping.

Pro tips:

• Always measure the bust, waist, and hips at the fullest part.
• Pay attention to brand-specific size charts—many global brands offer direct UK to US conversion guides.
• Consider fit preferences. Do you like a snug fit, or something with breathing room?

UK to US Women’s Clothing Conversion

Men’s Clothing Conversion

For men, the disparity is less dramatic. Men’s clothing sizes tend to translate more evenly. A UK size 40 blazer usually corresponds to a US size 40, but shirts, pants, and jackets may differ subtly in style, cut, and labeling conventions.

UK to US Shoe Size Conversion

Footwear is a poetic puzzle. A few centimeters or even a half-inch can cause a world of difference in comfort and style. To convert UK shoe sizes to US sizes, remember:

• For women’s shoes, add 2 sizes (UK 5 = US 7)
• For men’s shoe size, add 1 size (UK 9 = US 10)
• For children’s shoes, the conversion varies, so before you select, always refer to size conversion charts

Women’s Shoe Size Charts

Men’s Shoe Size Charts

Why You Need a UK to US Size Conversion Guide?

A UK to US size conversion guide helps shoppers and sellers avoid confusion, choose the right fit, and prevent returns. It lets customers know exactly what size to order, even when a product uses another country’s sizing system.

Imagine standing before a mirror in a beautifully lit boutique, only this time, the boutique lives inside your screen. The shopping cart gleams with curated finds: a chic blazer, sculpted women’s shoes, tailored pants, and a stylish pair of footwear destined to turn heads. But then comes that moment of doubt: “Will the UK 10 actually fit me? Is this the same as a US 6 or 8?”

This is the fashion maze millions navigate each day. The need to convert UK shoe sizes, understand clothing sizes, and interpret international measurements is more pressing than ever. As shopping crosses borders, so must your understanding of size conversion. The confusion comes from a global inconsistency where the UK, the US, and Europe have different size standards, with brands often adding their twist to the rhythm.

To add another layer, foot length is rarely part of the conversation in mainstream fashion. Yet it’s the one measure that holds across continents. The footwear that looks perfect on a shelf can disappoint in reality if even a few millimeters are off.

Having a trusted UK to US size conversion guide not only saves money and heartache. It builds trust, especially for eCommerce businesses, stylists, fashion consultants, and savvy dropshippers. Knowing how to convert UK shoe sizes and clothes helps customers avoid endless returns, enhances satisfaction, and creates loyalty that no coupon code can match.

How do UK, US, and EU sizes compare?

UK and US sizes use different numbering systems, while EU sizing is based on foot length in centimeters. Because of that, the same product can have three different size labels even though the fit is identical. Most women’s shoes move up by two sizes from UK to US, and EU sizes are usually 33–48, depending on the brand.

Women’s Shoe Sizes: UK, US, EU

Men’s Shoes: UK vs US vs EU

How do UK and US sizes work in Canada?

Canada follows US sizing for both clothing and footwear. That means a US women’s size 8 in Canada is the same as a US size 8 in the United States, even if the product comes from a UK supplier. When converting UK products for Canadian customers, use the same UK → US conversions shown earlier.

Why This Matters for Shoppers and Sellers?

Accurate UK to US size conversion leads to fewer returns, happier customers, and higher trust in online stores. It helps shoppers pick the right fit the first time and allows sellers to list products with confidence.

For shoppers, size conversion removes the guesswork. When buying from international brands, marketplaces, or dropshipping stores, it’s easy to end up with clothes or shoes that don’t fit as expected. A simple conversion chart makes the difference between a perfect purchase and a disappointing return.

For sellers, accurate sizing improves customer satisfaction, reduces refund requests, and builds credibility. Stores that provide UK, US, and EU sizes on product pages get more successful orders and fewer sizing complaints. Customers appreciate transparency, and it strengthens brand reputation.

Whether you’re handling clothing, footwear, or accessories, clear size conversion is one of the easiest ways to boost sales and keep shoppers coming back.

How to Measure Your Foot Length?

The most reliable way to convert UK shoe sizes accurately is to start at the source, your foot. Knowing your foot length in both cm and inches gives you a measurable anchor in the sea of size variations.

Step-by-Step Guide

1. Place a sheet of paper on the floor against a wall.
2. Stand on it with your heel against the wall.
3. Mark the tip of your longest toe.
4. Measure from the wall to the mark in inches or cm.
5. Repeat with both feet, and use the longer measurement.
6. Compare with a size chart to find your UK, US, and EU size equivalents.

Tip: Measure your foot in the evening when it’s at its fullest.

FAQs About UK to US Size Conversion

1. Is UK 8 the same as US 8?

No. In most cases, UK 8 is not the same as US 8. For women, a UK 8 usually converts to a US 6. For men, UK 8 typically matches a US 9. This is a common rule in shoe size conversion, because shoe sizes in the UK run smaller than the US. When selling across the UK, US, and UK Europe markets, always check brand charts for the most accurate shoe size conversion, especially when listings show multiple shoe sizes.

2. Is UK 18 L or XL?

A UK 18 generally fits like a US 14, which is considered a Large (L) or sometimes XL depending on the brand. Size labels vary across shoe sizes and apparel, so many sellers rely on a standard shoe size conversion chart and clothing chart to avoid confusion. When selling to the UK, US, or UK Europe regions, listing both UK and US sizes gives customers clearer choices and reduces returns.

3. Is UK sizing bigger than the USA?

No. UK sizing is usually smaller than the USA. For clothing, UK women’s sizes run about four numbers lower than US sizes. In shoe size conversion, most men’s shoe sizes are one size smaller in the UK and women’s shoe sizes are two sizes smaller. Sellers working with both US and UK Europe markets depend on clear shoe size conversion charts to help customers pick the right fit.

4. Is a 38 a size 7 or 8?

In most shoe size conversion charts, an EU 38 equals a US women’s 7.5 or 8, depending on the brand. Some EU brands list EU 38 as a US 7.5, while others list it as a US 8. Because EU shoe sizes can vary, it’s best to treat the number as an approximate match and check a full shoe size conversion chart when selling across UK, US, and UK Europe regions.

5. What are UK sizes in the US?

UK clothing and shoe sizes tend to run one to two sizes smaller than US sizes. For example, a UK size 6 in women’s shoes is approximately a US size 8. When it comes to clothes, a UK 10 dress might equal a US 6, though this can vary by brand, style, and cut. Always refer to specific size conversion charts to be sure.

6. What size is a US 14 in the UK?

In women’s clothing, a US size 14 usually converts to a UK size 18. This difference reflects the general rule that UK sizes are four numbers larger than their US equivalents for women’s clothes. However, some brands might vary slightly, so always check the brand’s guide before purchase.

7. What is UK size 10 in US feet?

In men’s shoe size, a UK 10 equals a US men’s shoe size 11. For women, a UK 10 typically converts to a US women’s size 12.

Note: factor in foot length in inches or cm, especially when dealing with footwear designed overseas.

8. What are the UK size 10 jeans in the USA?

A UK size 10 in jeans often translates to a US size 6 in women’s pants. But jeans sizing can differ significantly across brands, depending on waist measurements, inseam, and even stretch material.

The best approach? Measure the fullest part of your hips, refer to specific charts, and when in doubt, if the wear will fit, consult the retailer directly.

Final Thoughts: Sell with Precision

Global shopping shouldn’t feel like guesswork. Whether you’re browsing for the perfect heel, curating a brand-driven boutique, or running a fashion-forward dropshipping store, understanding how to convert UK shoe sizes, clothing, and more helps you and your customers walk confidently toward the perfect fit.

Still feels confusing? Let Sell The Trend guide you with its set of powerful tools for sourcing, scaling, and simplifying international sizing to ensure you don’t just sell products but comfort, confidence, and style.

Take Sell The Trend for a test drive today.