🔁 兆比特换算兆字节（Mb → MB / MiB，含下载时间）Megabit to Megabyte (Mb to MB or MiB, with Download Time)

使用说明与常见问题How-to & FAQ

「兆比特换算兆字节（Mb → MB / MiB，含下载时间）」是什么？What is the Megabit to Megabyte (Mb to MB or MiB, with Download Time) tool?

按 1 字节 = 8 比特把兆比特 (Mb) 换算成兆字节 (MB, 10⁶ 字节) 和 MiB (2²⁰ 字节)，同时给出千字节、吉字节和字节数。输入网速 (Mbps) 时还能算出每秒下载多少 MB。本地处理。Convert megabits (Mb) to megabytes (MB, 10⁶ bytes) and MiB (2²⁰ bytes) with 1 byte = 8 bits, along with kilobytes, gigabytes and bytes. Treat the value as a speed in Mbps to see how many MB download per second. Processed locally.

如何使用「兆比特换算兆字节（Mb → MB / MiB，含下载时间）」？How do I use the Megabit to Megabyte (Mb to MB or MiB, with Download Time) tool?

在「兆比特换算兆字节（Mb → MB / MiB，含下载时间）」中，填写「兆比特 Mb（或网速 Mbps）」等参数，结果会随输入实时计算并显示在下方。In the Megabit to Megabyte (Mb to MB or MiB, with Download Time): Fill in "Megabits Mb (or speed in Mbps)"; results are recalculated instantly as you type.

1 Mb 是多少 MB？How many MB is 1 Mb?

1 Mb = 0.125 MB，因为 1 字节 = 8 比特。8 Mb 正好是 1 MB。1 Mb = 0.125 MB because 1 byte is 8 bits, so 8 Mb is exactly 1 MB.

MB 和 MiB 有什么区别？What is the difference between MB and MiB?

MB 是十进制，1 MB = 1,000,000 字节；MiB 是二进制，1 MiB = 1,048,576 字节。操作系统有时把 MiB 也标成 MB。MB is decimal, 1,000,000 bytes; MiB is binary, 1,048,576 bytes. Some operating systems label MiB as MB.

100 Mbps 的宽带每秒能下多少？How fast is a 100 Mbps connection in MB?

理论上 100 ÷ 8 = 12.5 MB/s。实际速度会因协议开销和网络状况低一些。In theory 100 / 8 = 12.5 MB/s. Real speeds are somewhat lower because of protocol overhead and network conditions.

能举个计算实例吗？Can you show a worked example?

例如在「兆比特换算兆字节（Mb → MB / MiB，含下载时间）」中填 兆比特 Mb（或网速 Mbps） = 8，结果区显示：兆字节 MB：1；MiB：0.95367432；千字节 kB：1,000；吉字节 GB：0.001；字节：1,000,000；按网速理解：8 Mbps = 1 MB/s；ℹ 小写 b 是比特，大写 B 是字节。For example, entering Megabits Mb (or speed in Mbps) = 8 in the Megabit to Megabyte (Mb to MB or MiB, with Download Time) gives: Megabytes MB: 1; MiB: 0.95367432; Kilobytes kB: 1,000; Gigabytes GB: 0.001; Bytes: 1,000,000; As a speed: 8 Mbps = 1 MB/s; ℹ Lower-case b means bits; upper-case B means bytes.

哪些输入会被检查？Which inputs are validated?

「兆比特换算兆字节（Mb → MB / MiB，含下载时间）」会检查这些输入——「兆比特 Mb（或网速 Mbps）」：必须填写；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 Megabit to Megabyte (Mb to MB or MiB, with Download Time) checks its inputs — "Megabits Mb (or speed in Mbps)": required; 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?

「兆比特换算兆字节（Mb → MB / MiB，含下载时间）」的设置：「兆比特 Mb（或网速 Mbps）」默认 8。每次生成结果都按当前设置处理。Settings in the Megabit to Megabyte (Mb to MB or MiB, with Download Time) — "Megabits Mb (or speed in Mbps)" default 8. The result always uses the current settings.

可以反向换算吗？Can I convert the other way?

可以。页面下方有反向换算页面的链接，也可以打开完整的单位换算器，在多种单位之间同时换算。「兆比特换算兆字节（Mb → MB / MiB，含下载时间）」的换算系数采用国际标准定义。Yes. Use the reverse-conversion link below, or open the full unit converter to see many units at once. The Megabit to Megabyte (Mb to MB or MiB, with Download Time) uses internationally defined factors.

「兆比特换算兆字节（Mb → MB / MiB，含下载时间）」免费吗？需要注册吗？Is the Megabit to Megabyte (Mb to MB or MiB, with Download Time) free? Do I need an account?

「兆比特换算兆字节（Mb → MB / MiB，含下载时间）」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 Megabit to Megabyte (Mb to MB or MiB, with Download Time) is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.