European and British sizes

Short answer: British women's sizes are typically four numbers below European ones, while men's sizes are often close to the same. Always use the measurements in centimetres rather than the numbers, and you avoid most wrong purchases and returns.

The numbers do not mean the same thing

A number on a label only means something within the country and scale it comes from. A British size twelve typically matches a European thirty eight, which can be confusing when you shop across borders. The same applies when you choose bamboo underwear for men from a British shop.

Men's sizes are closer together

Men's clothing often uses chest measurements in inches, which convert directly to centimetres. That is why British and European men's sizes sit closer together than women's sizes. It does not mean everything fits the same, since cut and fabric still matter. Check the measurements for socks for men and other items first.

Letters only help partly

Many shops use S, M and L instead of numbers, which sounds simple. But letters are not shared across countries and brands, so a British M can fit differently from a European one. Use the letter as a first pointer, then check the table in centimetres. It takes a moment and saves a trip to the post office.

Measurements are the only sure thing

In every country a centimetre is the same, so a measured guide always beats a letter or a number. Measure your chest, waist and hips with a soft tape and write the figures down. Then you can compare with any guide in seconds. See the guide for the bamboo sweatshirt for men as an example.

Measure yourself properly

Stand relaxed and let the tape lie level around your body without pulling it tight. Measure the chest at its widest point, the waist at its narrowest and the hips at their widest. Measure over thin underwear so the figures match what you actually wear. Take each measurement twice and use the average.

Use an item you already own

If you have a jumper or trousers that fit well, they make a good reference. Lay the item flat, measure the width across the chest or hips and double it to get the circumference. Then compare with the measurements in the shop you want to buy from. That tells you whether to size up or down.

Fabric and cut change the feel

Two items with the same measurements can feel different because the fabric gives in different ways. Soft fabric with a little stretch often feels more forgiving than firm cotton. The cut matters too, as a loose style has more room than a close one. Always read whether an item is described as loose, regular or close fitting.

When you are between two sizes

If your measurements sit between two sizes, your preference decides. For a closer fit, choose the smaller one, and for more room, choose the larger. Think about what you will use the item for too. For relaxing at home many prefer a little more room, while underwear should sit close.

Frequently asked questions

How big is the difference in women's sizes

Typically four numbers between British and European, but always check the size table, as brands can differ from each other.

Does it apply to socks too

Socks are often given in shoe size, and there the difference is smaller. Pick the size that covers your usual shoe size.

What if the guide is missing

Measure an item you own and compare, or ask the shop for the measurements before you order anything.