Shoe size 40 in cm: China size chart
Shoe size 40 fits a foot of roughly 25.3 cm. That figure is an estimate: every brand and model differs a little, so the safest way is to measure your own foot and match it against the size chart on the item page.
How to measure your foot
- Put a sheet of paper on the floor, flush against a wall.
- Stand on the paper with your heel against the wall. Wear the socks you usually wear with those shoes.
- Mark the tip of your longest toe (not always the big toe).
- Measure from the edge of the paper to the mark with a ruler, in centimetres.
- Repeat for the other foot and use the longer number.
Measure in the late afternoon or evening. Feet are usually slightly bigger after a day on them.
Shoe sizes 35–45 in cm
Sizes such as 38, 40 or 42 use the European system. In it, one size step equals 2/3 cm of the shoe's last, and the last is about 1.3 cm (two sizes) longer than the foot. That gives roughly these foot lengths:
| Size | Foot length (cm) | In mm |
|---|---|---|
| 35 | 22.0 | 220 |
| 36 | 22.7 | 227 |
| 37 | 23.3 | 233 |
| 38 | 24.0 | 240 |
| 39 | 24.7 | 247 |
| 40 | 25.3 | 253 |
| 41 | 26.0 | 260 |
| 42 | 26.7 | 267 |
| 43 | 27.3 | 273 |
| 44 | 28.0 | 280 |
| 45 | 28.7 | 287 |
If your foot falls between two sizes, pick the larger one.
Reading a Chinese seller's size chart
Sellers in China usually label sizes with the same numbers (36, 37, 38 …). Many also give a size chart with foot length in millimetres, because China's national shoe size standard (GB/T 43293-2022) is based on foot length in mm. 250 in such a chart means a 25.0 cm foot.
If the size chart is an image in Chinese, look for these words:
| Text | Meaning |
|---|---|
| 尺码 / 码 | Size |
| 脚长 | Foot length |
| 脚宽 | Foot width |
| 内长 | Inside length of the shoe |
| 偏大 | Runs large |
| 偏小 | Runs small |
| 正常码 | True to size, pick your usual size |
| 建议拍大一码 | Pick one size up |
If the chart gives 脚长 (foot length), match it straight against your measurement. If it gives 内长 (inside length), that already includes room for your toes, so pick one about 1–1.5 cm longer than your foot.
Wide feet or a high instep
The right length isn't always comfortable if your feet are wide. For wide feet, pointed shoes, or a seller who writes 偏小, consider one size up. For sandals and shoes with laces or straps, your usual size is generally enough.
Choosing a shoe size on Singaya
On a Singaya item page, sizes appear as options, and we buy exactly the size you pick (choosing an option). Before you pick, check the description and photos: the seller's size chart is often in one of the photos. Sizes that are sold out are struck through and can't be chosen.
Buying from China for the first time? Read how to buy goods from China for delivery in Indonesia. For clothes, see reading clothing sizes from China.