%/ 坡度计算器（百分比、角度、比例 1:n 互换）Slope Calculator (Percent, Degrees and 1:n Ratio)
由升高和水平距离求坡度百分比、角度和 1:n 比例，或者从已知百分比、角度、比例中任意一个换算出其余，并给出斜面长度。常用于道路、坡道（无障碍坡道 1:12 ≈ 8.33 %）、屋顶和排水坡度。本地处理。From rise and run get slope as a percentage, an angle and a 1:n ratio, or convert from any one of percent, degrees or ratio to the others, with the slope length. Useful for roads, ramps (accessible ramps 1:12 ≈ 8.33 %), roofs and drainage. Processed locally.
使用说明与常见问题How-to & FAQ
「坡度计算器（百分比、角度、比例 1:n 互换）」是什么？What is the Slope Calculator (Percent, Degrees and 1:n Ratio) tool?
由升高和水平距离求坡度百分比、角度和 1:n 比例，或者从已知百分比、角度、比例中任意一个换算出其余，并给出斜面长度。常用于道路、坡道（无障碍坡道 1:12 ≈ 8.33 %）、屋顶和排水坡度。本地处理。From rise and run get slope as a percentage, an angle and a 1:n ratio, or convert from any one of percent, degrees or ratio to the others, with the slope length. Useful for roads, ramps (accessible ramps 1:12 ≈ 8.33 %), roofs and drainage. Processed locally.
如何使用「坡度计算器（百分比、角度、比例 1:n 互换）」？How do I use the Slope Calculator (Percent, Degrees and 1:n Ratio) tool?
在「坡度计算器（百分比、角度、比例 1:n 互换）」中，填写「已知」、「升高」、「水平距」、「数值」等参数，结果会随输入实时计算并显示在下方。In the Slope Calculator (Percent, Degrees and 1:n Ratio): Fill in "Known", "Rise", "Run", "Value"; results are recalculated instantly as you type.
坡度百分比怎么算？How is slope percentage calculated?
坡度 % = 升高 ÷ 水平距离 × 100。水平 10 m 升高 1 m，坡度是 10 %，角度约 5.71°。Slope % = rise ÷ run × 100. A 1 m rise over a 10 m run is 10 %, about 5.71°.
百分比和角度怎么换算？How do percent and degrees convert?
角度 = arctan(百分比 ÷ 100)，百分比 = tan(角度) × 100。45° 等于 100 % 坡度，并不是 50 %。Degrees = arctan(percent ÷ 100) and percent = tan(degrees) × 100. A 45° slope is 100 %, not 50 %.
1:12 是什么意思？What does 1:12 mean?
每水平 12 个单位升高 1 个单位，约 8.33 %、4.76°，是许多无障碍规范对轮椅坡道的最大坡度。One unit of rise for every 12 units of run, about 8.33 % or 4.76°, the maximum wheelchair ramp slope in many accessibility codes.
能举个计算实例吗？Can you show a worked example?
例如在「坡度计算器（百分比、角度、比例 1:n 互换）」中填 升高 = 1，水平距 = 10，结果区显示：坡度 %：10；角度 °：5.7106For example, entering Rise = 1, Run = 10 in the Slope Calculator (Percent, Degrees and 1:n Ratio) gives: Slope %: 10; Angle °: 5.7106
哪些输入会被检查？Which inputs are validated?
「坡度计算器（百分比、角度、比例 1:n 互换）」会检查这些输入——「升高」、「数值」：所选方式用到时必须填写；「水平距」：所选方式用到时必须填写，须大于 0；绝对值超过 10¹⁵ 的数也会被拒绝。不符合时结果区显示具体提示，不会给出数字。The Slope Calculator (Percent, Degrees and 1:n Ratio) checks its inputs — "Rise", "Value": required when the chosen option uses it; "Run": required when the chosen option uses it, must be greater than 0; numbers above 10¹⁵ in absolute value are rejected too. When a value fails, the result area names the problem instead of showing a number.
有哪些选项可以调整？What options can I adjust?
「坡度计算器（百分比、角度、比例 1:n 互换）」的设置：「已知」可选 升高与水平距、百分比、角度、比例 1:n（默认 升高与水平距）；「升高」默认 1；「水平距」默认 10；「数值」默认 10。每次生成结果都按当前设置处理。Settings in the Slope Calculator (Percent, Degrees and 1:n Ratio) — "Known": Rise and run, Percent, Degrees, Ratio 1:n (default Rise and run); "Rise" default 1; "Run" default 10; "Value" default 10. The result always uses the current settings.
计算精度如何？How precise are the results?
「坡度计算器（百分比、角度、比例 1:n 互换）」使用 JavaScript 双精度浮点数（约 15–16 位有效数字）；极大或极小的数值可能存在精度误差。The Slope Calculator (Percent, Degrees and 1:n Ratio) uses double-precision floating point (about 15–16 significant digits); very large or very small values may lose precision.
「坡度计算器（百分比、角度、比例 1:n 互换）」免费吗？需要注册吗？Is the Slope Calculator (Percent, Degrees and 1:n Ratio) free? Do I need an account?
「坡度计算器（百分比、角度、比例 1:n 互换）」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 Slope Calculator (Percent, Degrees and 1:n Ratio) is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.