Roller skate size guide
Measure your foot standing up, heel against a wall, from the heel to the tip of the longest toe, wearing the socks you'll skate in. Use the larger foot. Skates should feel snug with toes just touching the front when standing, and the heel shouldn't lift when you bend your knees.
| Foot length (cm) | EU | UK | US |
|---|---|---|---|
| 18.5 | 30 | 11.5 K | 12.5 K |
| 19.5 | 31 | 12.5 K | 13.5 K |
| 20.0 | 32 | 13 K | 1 Y |
| 20.5 | 33 | 1 | 2 Y |
| 21.5 | 34 | 2 | 3 Y |
| 22.0 | 35 | 2.5 | W 5 / M 3.5 |
| 22.5 | 36 | 3.5 | W 5.5 / M 4.5 |
| 23.5 | 37 | 4 | W 6.5 / M 5 |
| 24.0 | 38 | 5 | W 7 / M 6 |
| 24.5 | 39 | 6 | W 8 / M 7 |
| 25.0 | 40 | 6.5 | W 8.5 / M 7.5 |
| 25.5 | 41 | 7 | W 9 / M 8 |
| 26.5 | 42 | 8 | M 9 |
| 27.0 | 43 | 9 | M 10 |
| 28.0 | 44 | 9.5 | M 10.5 |
| 28.5 | 45 | 10.5 | M 11 |
K = kids, Y = youth, W = women, M = men. Sizes are approximate and vary by brand; check the listing's size notes.
Kids' adjustable skates
Adjustable skates expand by 3–4 sizes. Pick a range where your child's current size sits at the smaller end, so the skates grow with them. When they finally outgrow them, list them on Skatixx.
Wheels at a glance
- Diameter: smaller (54–64 mm quad, 64–76 mm inline) = more control and agility; larger (80–110 mm inline) = more speed, common on speed skates.
- Hardness: softer (78A–85A) grips rough outdoor roads; harder (88A–101A) rolls faster on smooth indoor rinks and skateparks.
- Bearings: most skates use 608 bearings (8 mm axle); some speed frames use 688. Check compatibility tags on spares.