🛣️ 千米 ↔ 皮米Kilometre to Picometre
千米与皮米互算（1 km = 1e+15 pm）。本地换算，附常用相关单位。Convert kilometre and picometre (1 km = 1e+15 pm). Runs locally with related units.
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
「千米 ↔ 皮米」是什么？What is the Kilometre to Picometre tool?
千米与皮米互算（1 km = 1e+15 pm）。本地换算，附常用相关单位。Convert kilometre and picometre (1 km = 1e+15 pm). Runs locally with related units.
如何使用「千米 ↔ 皮米」？How do I use the Kilometre to Picometre tool?
在「千米 ↔ 皮米」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 Kilometre to Picometre and choose the source unit; the table shows the value in every other unit at once, ready to copy.
1 千米等于多少皮米？How many picometre in 1 kilometre?
1 km = 1e+15 pm（按国际定义系数）。1 km = 1e+15 pm (international definition).
如何把千米换算成皮米？How do I convert kilometre to picometre?
结果 = 数值 × 1e+15。例如 1e-15 km = 1 pm。result = value × 1e+15. Example: 1e-15 km = 1 pm.
千米/皮米属于哪类单位？What kind of units are kilometre/picometre?
二者同属「长度」量纲，可安全互算；也可打开「length-converter」做多单位对照。Both are length units; see also the length converter hub.
换算系数准确吗？Are the conversion factors exact?
「千米 ↔ 皮米」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 Kilometre to Picometre uses factors defined by the SI or other recognised standards and shows about 10 significant digits.
「千米 ↔ 皮米」免费吗？需要注册吗？Is the Kilometre to Picometre free? Do I need an account?
「千米 ↔ 皮米」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 Kilometre to Picometre is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.