Soxfun Resource
Sock Size Guide
Find the right size for your custom socks—from kids to adults, US to EU. Socks are stretchy, so you may fit comfortably in more than one size. Size down for sports or compression, and size up for everyday wear or gifts.
Adult Sock Size Chart (US & EU)
Women's US size 9 is roughly equivalent to a men's US size 7.5. For mixed-gender orders, always specify whether sizes are men's or women's—or use foot length to avoid mismatches.
| Sock Size | US Men | US Women | EU | Foot Length (cm) |
|---|---|---|---|---|
| S | 4–6 | 5–7 | 35–38 | 21.6–24.1 |
| M | 6–9 | 7–10 | 39–42 | 24.1–26.7 |
| L | 9–12 | 10–13 | 43–46 | 26.7–29.2 |
| XL | 12–15 | 13+ | 47–51 | 29.2–31.8 |
Kids & Youth Sock Size Chart
For kids, foot length is more reliable than age, since children of the same age can vary widely in foot size.
| Age | Foot Length (cm) | US Shoe | EU Shoe |
|---|---|---|---|
| 0–6M | 8.5–9 | 0–1 | 15–16 |
| 6–12M | 9.5–11 | 1–2.5 | 16–18.5 |
| 12–24M | 11.5–13 | 3–7C | 18.5–23.5 |
| 2–4Y | 13.5–15.5 | 7C–10C | 23.5–27 |
| 4–6Y | 15.5–17.5 | 10C–3Y | 27–35 |
| 7–9Y | 17.5–19.5 | 3Y–5Y | 34–37.5 |
How to Measure Foot Length
For the most accurate fit, measure your feet in the afternoon or evening—feet swell slightly throughout the day.
- Stand barefoot on a sheet of paper on a hard floor.
- Mark the heel and the tip of your longest toe.
- Measure the distance in centimeters or inches.
- Match the measurement to the chart above.
- If you are between sizes, round up for standard socks and down for compression.
Sock Height Guide
Standard leg lengths are measured from heel to top.
| Height | Length (heel to top) |
|---|---|
| Low | 6 cm / 2.36 in |
| Quarter | 15 cm / 5.90 in |
| Crew | 26 cm / 10.23 in |
| Knee-High | 46 cm / 18.11 in |
Looking for a specific style? We produce crew, ankle, quarter, knee-high, and more—all fully customizable.
One Size Fits Most
Foot length24–27 cm
US Men5–9.5
US Women7–11
EU Shoe38–43
This option means no size collection, fewer exchanges, faster production, and a simpler order for events, gifts, and teams. If your group has a wider size range, we can plan a size split instead.
Bulk Order Size Split for Teams & Events
A common starting point for adult unisex socks is 10% S, 35% M, 40% L, and 15% XL. Men's sports teams usually skew toward L and XL, while a mixed office order may lean toward M. Adjust it to the group's real measurements whenever possible.
Quick sizing tips
- Measure foot length first—it is the most reliable international comparison.
- Size up for comfort and down for compression.
- When in doubt, send us the group's shoe sizes and specify men's or women's.
Still Not Sure Which Size to Choose?
Send us your group's shoe sizes or foot lengths.
We'll help plan the right size split for your order.
Just ask—we're happy to answer →