Not sure which sock size to choose? Use this sock size chart to convert US, EU and UK shoe sizes to sock sizes, then read our thigh high sock fit guide to pick the right length for your legs. Sizes are approximate; each product page also lists its exact measurements.
Sock size chart (shoe size to sock size)
| Sock size | US women's shoe | US men's shoe | EU shoe | UK shoe | Foot length |
|---|---|---|---|---|---|
| 9-11 | 4-10 | 3-8.5 | 35-41 | 2-7.5 | 22-26 cm |
| 10-13 | 7.5-13 | 6-12 | 39-46 | 5.5-11.5 | 24-29 cm |
| 12-14 | - | 12-15 | 46-49 | 11.5-14 | 29-31 cm |
Most of our women's socks are one size, which usually fits US women's shoe 5-10. Men's styles list their own sizes on the product page.
Slipper sock sizes
| Size option | US | EU | Foot length |
|---|---|---|---|
| Small | Women 5-8 | 35-39 | about 24 cm |
| Medium | Women 9-11 / Men 7-9 | 40-42 | about 26 cm |
| Large | Men 9.5-11.5 | 43-45 | about 27 cm |
| Men's XL (knit slipper socks with sole) | Men 12-14 | 46-48 | about 29-30 cm |
How to measure your foot
- Stand on a sheet of paper with your heel against a wall.
- Mark the tip of your longest toe.
- Measure from the wall to the mark in centimetres.
- Use the larger foot if they differ, and compare with the foot length column above.
Thigh high sock fit guide
For thigh high socks and over the knee socks, your leg length and thigh width matter more than shoe size.
| Sock length (heel to top) | Where it usually sits | Example |
|---|---|---|
| 50-55 cm | Just over the knee | Contrast trim cotton over the knee socks |
| 55-65 cm | Above the knee to lower thigh | Lace top thigh high socks |
| 70-75 cm | Mid-thigh on most women | Long knit over the knee socks |
| 85-90 cm (35 in) | High thigh, tall or plus size legs | Extra long thigh high socks |
How to measure for thigh highs
- Leg length: sit with your knee bent and measure from the floor under your heel to where you want the sock to end.
- Thigh width: measure around the fullest part of your thigh at that height.
- Choose a sock at least as long as your measurement. If your thigh is wider than average, choose high-stretch styles such as our plus size over the knee socks.
Tips to keep thigh highs up
- Let the top sit on the fuller part of the thigh, not just above the knee.
- Choose ribbed or elastic tops that stretch but recover.
- Wash cool and dry flat so the elastic stays strong.
- For long days, add sock garters.
Still unsure?
Contact us through our contact page with your shoe size, height and the style you like, and we'll help you choose. Browse women's socks or men's socks.