📏 尺码对照换算Size Converter

8 类常用尺码一页搞定：鞋码、女装连衣裙、文胸、戒指、帽子、手套尺码在中国、欧、美、英等体系之间换算，并推荐滑雪板长度和自行车车架尺寸。Eight size types on one page: shoes, dresses, bras, rings, hats and gloves across China/EU/US/UK systems, plus ski length and bike frame size suggestions.

使用说明与常见问题How-to & FAQ

包括哪些尺码？Which sizes are included?

鞋码（中国码/脚长、欧码、美码男女、英码）、女装连衣裙（英/美/德/法/意/俄码、字母码、中国号型）、文胸（欧/中、美、英码）、戒指（内径、周长、美/英/欧码）、帽子、手套、滑雪板长度和自行车车架尺寸。Shoes (China/foot length, EU, US men/women, UK), dresses (UK/US/DE/FR/IT/RU, letter, China GB/T codes), bras (EU/China, US, UK), rings (diameter, circumference, US/UK/EU), hats, gloves, ski length and bike frame size.

尺码换算准确吗？How accurate are the conversions?

鞋码按脚长公式换算并取半码，戒指按内径公式，女装按 Marks & Spencer 标准尺码表；不同品牌的版型和鞋楦会有差异，购买前请以商品页的尺码表为准。Shoe sizes come from foot-length formulas rounded to half sizes, rings from the diameter formula, dresses from the Marks & Spencer standard chart; brands differ, so check the product's own chart before buying.

怎么量脚长、头围和手掌？How do I measure?

脚长：脚跟到最长脚趾的直线距离；头围：经过眉毛上方和后脑最突出处绕一圈；手掌：绕手掌最宽处（不含拇指）一圈；戒指：量手指周长或现有戒指的内径。Foot: heel to longest toe; head: around the forehead above the brows and the back of the head; palm: around the widest part excluding the thumb; ring: the finger circumference or an existing ring's inner diameter.

可以直接打开某一类尺码吗？Can I link to one size type?

可以，链接加上 ?t=ring、?t=shoe、?t=dress 等参数即可打开对应的标签页。Yes — add ?t=ring, ?t=shoe, ?t=dress and so on to the link to open that tab.