鞋码转换器
在美国、欧盟、英国和日本尺码之间转换鞋码。
尺码仅供参考。有条件时请实际试穿。
| 美国男款 | 美国女款 | 欧盟 | 英国 | 日本 (厘米) |
|---|---|---|---|---|
| 3 | 5 | 35 | 2.5 | 21.5 |
| 3.5 | 5.5 | 35.5 | 3 | 22 |
| 4 | 6 | 36 | 3.5 | 22.5 |
| 4.5 | 6.5 | 37 | 4 | 23 |
| 5 | 7 | 37.5 | 4.5 | 23.5 |
| 5.5 | 7.5 | 38 | 5 | 24 |
| 6 | 8 | 38.5 | 5.5 | 24 |
| 6.5 | 8.5 | 39 | 6 | 24.5 |
| 7 | 9 | 40 | 6.5 | 25 |
| 7.5 | 9.5 | 40.5 | 7 | 25.5 |
| 8 | 10 | 41 | 7.5 | 26 |
| 8.5 | 10.5 | 42 | 8 | 26.5 |
| 9 | 11 | 42.5 | 8.5 | 27 |
| 9.5 | 11.5 | 43 | 9 | 27.5 |
| 10 | 12 | 44 | 9.5 | 28 |
| 10.5 | 12.5 | 44.5 | 10 | 28.5 |
| 11 | 13 | 45 | 10.5 | 29 |
| 11.5 | 13.5 | 45.5 | 11 | 29.5 |
| 12 | 14 | 46 | 11.5 | 30 |
| 13 | 15 | 47 | 12.5 | 31 |
常见问题
代码实现
# Shoe size conversion using lookup tables
# No single formula — sizes require brand-specific tables
# This shows the ISO/standard lookup approach
# EU → US Men's / US Women's / UK / JP (cm)
EU_TO_OTHERS = {
# (eu): (us_men, us_women, uk_men, jp_cm)
36: (4.0, 5.5, 3.5, 22.5),
37: (4.5, 6.0, 4.0, 23.0),
38: (5.5, 7.0, 5.0, 23.5),
39: (6.5, 8.0, 6.0, 24.5),
40: (7.0, 8.5, 6.5, 25.0),
41: (8.0, 9.5, 7.5, 25.5),
42: (9.0, 10.5, 8.0, 26.5),
43: (10.0, 11.5, 9.0, 27.0),
44: (11.0, 12.5, 10.0, 27.5),
45: (12.0, 13.5, 11.0, 28.5),
46: (13.0, 14.5, 12.0, 29.0),
}
def eu_to_us_men(eu: int) -> float:
return EU_TO_OTHERS[eu][0]
def eu_to_uk(eu: int) -> float:
return EU_TO_OTHERS[eu][2]
def eu_to_jp(eu: int) -> float:
return EU_TO_OTHERS[eu][3]
# JP size = foot length in cm (nearest 0.5)
def foot_cm_to_jp(foot_cm: float) -> float:
return round(foot_cm * 2) / 2 # round to nearest 0.5
# Examples
print(eu_to_us_men(42)) # 9.0
print(eu_to_uk(42)) # 8.0
print(eu_to_jp(42)) # 26.5
print(foot_cm_to_jp(26.3)) # 26.5Comments & Feedback
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