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📏 英尺英寸计算器Feet and Inches Calculator
英尺和英寸的加减乘除（如 5'8" + 3'6"），结果以英尺-英寸（精确到 1/16 英寸）、总英寸和厘米显示。Add, subtract, multiply or divide feet and inches (e.g. 5'8" + 3'6"), with results in feet-inches to 1/16 in, total inches and centimeters.
使用说明与常见问题How-to & FAQ
「英尺英寸计算器」是什么？What is the Feet and Inches Calculator tool?
英尺和英寸的加减乘除（如 5'8" + 3'6"），结果以英尺-英寸（精确到 1/16 英寸）、总英寸和厘米显示。Add, subtract, multiply or divide feet and inches (e.g. 5'8" + 3'6"), with results in feet-inches to 1/16 in, total inches and centimeters.
如何使用「英尺英寸计算器」？How do I use the Feet and Inches Calculator tool?
在「英尺英寸计算器」中，填写「A 英尺」、「A 英寸」、「运算」、「B 英尺(加减用)」、「B 英寸(加减用)」等参数，结果会随输入实时计算并显示在下方。In the Feet and Inches Calculator: Fill in "A feet", "A inches", "Operation", "B feet (for + −)", "B inches (for + −)"; results are recalculated instantly as you type.
「英尺英寸计算器」免费吗？需要注册吗？Is the Feet and Inches Calculator free? Do I need an account?
「英尺英寸计算器」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Feet and Inches Calculator is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.