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📺 电视挂墙高度TV Mounting Height Calculator
让屏幕中心与坐姿视线齐平（默认 107 cm / 42 in）：按尺寸和比例算出屏幕高度，以及屏幕中心、下沿和上沿离地高度，并给出建议观看距离。本地处理。Put the screen centre at seated eye level (107 cm / 42 in by default): from the size and aspect ratio, get the screen height and the centre, bottom and top heights, plus a suggested viewing distance. Processed locally.
使用说明与常见问题How-to & FAQ
「电视挂墙高度」是什么？What is the TV Mounting Height Calculator tool?
让屏幕中心与坐姿视线齐平（默认 107 cm / 42 in）：按尺寸和比例算出屏幕高度，以及屏幕中心、下沿和上沿离地高度，并给出建议观看距离。本地处理。Put the screen centre at seated eye level (107 cm / 42 in by default): from the size and aspect ratio, get the screen height and the centre, bottom and top heights, plus a suggested viewing distance. Processed locally.
如何使用「电视挂墙高度」？How do I use the TV Mounting Height Calculator tool?
填写屏幕尺寸（英寸），选择比例，按需修改坐姿视线高度（默认 107 cm），即可得到屏幕高度、中心、底边和顶边的安装高度以及建议观看距离。结果会随输入实时更新。Enter the screen size in inches, choose the aspect ratio and change the seated eye height if needed (107 cm by default) to get the screen height, the centre, bottom and top heights and a suggested viewing distance. The result updates as you type.
卧室挂高？Bedroom?
躺着看时视线更高，可以把中心抬高并让屏幕略向下倾斜。Lying down raises the eye line; mount higher and tilt the screen down slightly.
能举个计算实例吗？Can you show a worked example?
例如在「电视挂墙高度」中填 屏幕尺寸（英寸） = 55，比例 = 16:9，视线高度 cm = 107，结果区显示：屏幕宽 × 高：121.8 × 68.5 cm；屏幕中心离地：107 cm；下沿离地：72.8 cm；上沿离地：141.2 cm；建议观看距离：1.68–2.24 mFor example, entering Screen size (inches) = 55, Aspect ratio = 16:9, Eye height cm = 107 in the TV Mounting Height Calculator gives: Screen width × height: 121.8 × 68.5 cm; Centre height: 107 cm; Bottom edge: 72.8 cm; Top edge: 141.2 cm; Viewing distance: 1.68–2.24 m
哪些输入会被检查？Which inputs are validated?
「电视挂墙高度」会检查这些输入——「屏幕尺寸（英寸）」：必须填写，不能为负数；「视线高度 cm」：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 TV Mounting Height Calculator checks its inputs — "Screen size (inches)": required, cannot be negative; "Eye height cm": required, 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?
「电视挂墙高度」的设置：「屏幕尺寸（英寸）」默认 55；「比例」可选 16:9、21:9、4:3（默认 16:9）；「视线高度 cm」默认 107。每次生成结果都按当前设置处理。Settings in the TV Mounting Height Calculator — "Screen size (inches)" default 55; "Aspect ratio": 16:9, 21:9, 4:3 (default 16:9); "Eye height cm" default 107. The result always uses the current settings.
「电视挂墙高度」免费吗？需要注册吗？Is the TV Mounting Height Calculator free? Do I need an account?
「电视挂墙高度」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 TV Mounting Height 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.