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A measurement guide to find out the right size for your compression socks

Choosing the right size compression socks can be difficult since it is not the familiar measurements that you are used to using. Also, different manufacturers use different measurement charts. Here is all you need to know about how to get just the right size socks.

Quick guide to the measurements you need

Measurement Code

How to measure

Reason for measurements


Ankle/wrist circumference. Measure at the thinnest part of your wrist or ankle.

Essential for all compression socks.


Calf circumference. Measure at the thickest part of your calf.

Important for all compression socks.


Circumference of your leg, about 0.7 inches below the bend of the knee.

Only important for strong compression socks


Circumference at the middle of the thigh.

Essential for strong compression tights/stay-ups. Good for medium compression tights and stay-ups.


Length of your leg from the heel to the groin.

Important for all stay-ups/compression tights so they are not too long or too short.

Remember, if a doctor orders you to wear compression socks, always ask for the degree of compression and ask them to give you your measurements.

The long version

First of all, compression socks come with different compression classes that are named differently and secondly, different manufacturers have different measurements.

With this text we hope to straighten out all those questions you might have had, but if you still have any questions do not hesitate to contact us and we will try to answer your questions as soon as possible.

First – compression what it is and what you need

We have divided our compression socks into three categories

Mild compression – for minor symptoms and prevention. They are also useful on long flights.

Medium compression – if you have very swollen legs/feet, varicose veins or are recommended compression socks by a health professional.

Strong compression – use only if this is recommended by a doctor or nurse. Be very careful to measure yourself exactly right to get the correct degree of compression.

What measure do you need to get the correct size

Compression socks help the blood flow back up to the heart. When we get older or fly our legs tend to expand, making the natural system that stops backflow in the veins work less effectively. A compression sock compresses the legs and supports the veins in their work, hence the alternative name “support socks”.

It is most important to have the correct support at the ankle/wrist. This means that you need to measure the circumference around the ankle/wrist carefully. This measure is called cB.

At the ankle/wrist you have 100 % compression, which means that this is where the sock is most effective.

The next measurement is at the calf. Here, it is important to get compression, but not too much, or it might stop the blood flow. You need to measure the circumference around the widest part of your calf. This measurement is called cC.

These two measurements are enough for knee-high socks, unless you use socks with a strong compression rating. Then, you need to measure cD, which is the circumference about 0.7 inches under the bend of your knee. One easy way to do this is to use the width of two fingers below the knee bend and measure the point right there.

If you want compression tights or stay-ups, you need to measure the length of your leg as well. You measure from the heel to the groin. A smart way of doing this is to stand barefoot with your back to a wall.  Mark with a dot where the leg ends and the groin begins. Then, measure from the floor upwards. This measurement is called IG.

With cB, cC and IG you are well off with any compression tights or stay-ups that have a mild or medium compression rating. However, if you need a strong compression type of sock, you also need the measurement cF, which is the circumference at the middle of your thigh.