🔬 微米 ↔ 毫米Micrometer to Millimeter

使用说明与常见问题How-to & FAQ

「微米 ↔ 毫米」是什么？What is the Micrometer to Millimeter tool?

微米与毫米互算（1 mm = 1000 µm）。支持微米、毫米、米、纳米互算。Micrometres ↔ millimetres (1 mm = 1,000 µm). Units: micrometre, millimetre, metre, nanometre.

如何使用「微米 ↔ 毫米」？How do I use the Micrometer to Millimeter tool?

在「微米 ↔ 毫米」中输入数值并选择原单位，表格会同时列出换算到所有其他单位的结果，可一键复制。Enter a value in the Micrometer to Millimeter and choose the source unit; the table shows the value in every other unit at once, ready to copy.

µm 和 um 是一样的吗？Are µm and um the same?

是的，µm（微米）在不能输入希腊字母 µ 的场合常写作 um，有时也叫 micron。1 毫米 = 1000 微米，1 微米 = 0.001 毫米。Yes. µm (micrometre) is often typed as um where the Greek µ is unavailable, and is sometimes called a micron. 1 mm = 1,000 µm and 1 µm = 0.001 mm.

1 微米 等于多少其他单位？How much is 1 micrometre in the other units?

1 微米 = 0.001 毫米 = 1 × 10^-6 米 = 1000 纳米（按定义系数计算，最多保留 10 位有效数字）。本页不接受负数：输入负值会提示错误。1 micrometre = 0.001 millimetre = 1 × 10^-6 metre = 1000 nanometre (from the defined factors, up to 10 significant digits). Negative values are not accepted here and show an error.

有哪些选项可以调整？What options can I adjust?

「微米 ↔ 毫米」的设置：「数值」默认 1。每次生成结果都按当前设置处理。Settings in the Micrometer to Millimeter — "Value" default 1. The result always uses the current settings.

换算系数准确吗？Are the conversion factors exact?

「微米 ↔ 毫米」采用国际单位制（SI）或公认标准中的定义值作为换算系数，结果保留约 10 位有效数字。The Micrometer to Millimeter uses factors defined by the SI or other recognised standards and shows about 10 significant digits.

「微米 ↔ 毫米」免费吗？需要注册吗？Is the Micrometer to Millimeter free? Do I need an account?

「微米 ↔ 毫米」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 Micrometer to Millimeter is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.