IPv6 Calculator

Free online IPv6 Calculator. No sign-up needed, and it runs in your browser.

Processed on your device

Expand or shorten an IPv6 address, see its type, and work out the range and size of any IPv6 prefix.

Short form follows RFC 5952 (the standard way to write IPv6). Brackets and zone IDs like %eth0 are removed automatically.

How to use

  1. Add your text or file.
  2. Adjust the options if needed.
  3. Copy or download the result.