⌛ 柏拉图年 ↔ 金星会合周期Platonic year (~25.8 kyr) to Venus synodic period
柏拉图年与金星会合周期互算（1 yr Plat = 1614620.028 PVen syn）。本地换算，附常用相关单位。Convert Platonic year (~25.8 kyr) and Venus synodic period (1 yr Plat = 1614620.028 PVen syn). 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
「柏拉图年 ↔ 金星会合周期」是什么？What is the Platonic year (~25.8 kyr) to Venus synodic period tool?
柏拉图年与金星会合周期互算（1 yr Plat = 1614620.028 PVen syn）。本地换算，附常用相关单位。Convert Platonic year (~25.8 kyr) and Venus synodic period (1 yr Plat = 1614620.028 PVen syn). Runs locally with related units.
如何使用「柏拉图年 ↔ 金星会合周期」？How do I use the Platonic year (~25.8 kyr) to Venus synodic period tool?
在「柏拉图年 ↔ 金星会合周期」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 Platonic year (~25.8 kyr) to Venus synodic period and choose the source unit; the table shows the value in every other unit at once, ready to copy.
1 柏拉图年等于多少金星会合周期？How many Venus synodic period in 1 Platonic year (~25.8 kyr)?
1 yr Plat = 1614620.028 PVen syn（按国际定义系数）。1 yr Plat = 1614620.028 PVen syn (international definition).
如何把柏拉图年换算成金星会合周期？How do I convert Platonic year (~25.8 kyr) to Venus synodic period?
结果 = 数值 × 1614620.028。例如 1 yr Plat = 1614620.028 PVen syn。result = value × 1614620.028. Example: 1 yr Plat = 1614620.028 PVen syn.
柏拉图年/金星会合周期属于哪类单位？What kind of units are Platonic year (~25.8 kyr)/Venus synodic period?
二者同属「时间」量纲，可安全互算；也可打开「time-unit-converter」做多单位对照。Both are time units; see also the time unit converter hub.
换算系数准确吗？Are the conversion factors exact?
「柏拉图年 ↔ 金星会合周期」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 Platonic year (~25.8 kyr) to Venus synodic period uses factors defined by the SI or other recognised standards and shows about 10 significant digits.
「柏拉图年 ↔ 金星会合周期」免费吗？需要注册吗？Is the Platonic year (~25.8 kyr) to Venus synodic period free? Do I need an account?
「柏拉图年 ↔ 金星会合周期」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 Platonic year (~25.8 kyr) to Venus synodic period is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.