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RapideTools

数据大小转换器

转换 KB、MB、GB 和 KiB、MiB、GiB。

Enter a value to convert instantly between data sizes. Decimal units (KB, MB, GB, TB) use powers of 1000, while binary units (KiB, MiB, GiB, TiB) use powers of 1024. Everything runs locally in your browser.

十进制单位（KB、MB、GB、TB）以 1000 为基数；二进制单位（KiB、MiB、GiB、TiB）以 1024 为基数。

你的输入在浏览器本地处理 —— 不会上传、存储或记录。

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工作原理

  1. 1 Type a value.
  2. 2 Pick the units to convert from and to.
  3. 3 Copy the result, or Swap to reverse.

常见用例

  • Convert file sizes.
  • Compare KB and KiB.
  • Estimate storage or bandwidth.
  • Check download sizes.

常见问题

Is my input sent to a server?

No. Every calculation runs locally in your browser — your input is never uploaded, stored or logged.

What's the difference between KB and KiB?

1 KB (kilobyte) = 1000 bytes (decimal). 1 KiB (kibibyte) = 1024 bytes (binary). Operating systems often label binary sizes with decimal symbols, causing confusion.

How many bits in a byte?

8 bits = 1 byte.

Is it really free?

Yes — free, with no signup and no limits.

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