📐 厘米 ↔ 千米Centimeter ↔ Kilometer
厘米与千米互算（1 km = 100,000 cm）。支持厘米、千米、米互算。Convert centimetres and kilometres (1 km = 100,000 cm). Units: centimetre, kilometre, metre.
点击任意一行可复制该结果；小于 0.0001 或不小于 10¹⁵ 的数值用 × 10ⁿ 科学计数法显示Click any row to copy that result. Values below 0.0001 or at least 10¹⁵ are shown in × 10ⁿ notation
使用说明与常见问题How-to & FAQ
「厘米 ↔ 千米」是什么？What is the Centimeter ↔ Kilometer tool?
厘米与千米互算（1 km = 100,000 cm）。支持厘米、千米、米互算。Convert centimetres and kilometres (1 km = 100,000 cm). Units: centimetre, kilometre, metre.
如何使用「厘米 ↔ 千米」？How do I use the Centimeter ↔ Kilometer tool?
在「厘米 ↔ 千米」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 Centimeter ↔ Kilometer and choose the source unit; the table shows the value in every other unit at once, ready to copy.
公制Metric
1 km = 1000 m = 100,000 cm。1 km = 1,000 m = 100,000 cm.
1 厘米 等于多少其他单位？How much is 1 centimetre in the other units?
1 厘米 = 1 × 10^-5 千米 = 0.01 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 centimetre = 1 × 10^-5 kilometre = 0.01 metre (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?
「厘米 ↔ 千米」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 Centimeter ↔ Kilometer — "Value" default 1. The result always uses the current settings.
换算系数准确吗？Are the conversion factors exact?
「厘米 ↔ 千米」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 Centimeter ↔ Kilometer uses factors defined by the SI or other recognised standards and shows about 10 significant digits.
「厘米 ↔ 千米」免费吗？需要注册吗？Is the Centimeter ↔ Kilometer free? Do I need an account?
「厘米 ↔ 千米」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 Centimeter ↔ Kilometer is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.