Convert an IPv4 address to its IPv6 forms: IPv4-mapped, expanded, 6to4 prefix, NAT64 and the deprecated IPv4-compatible format. Click any result to copy.
On this page
About this tool
Convert an IPv4 address to IPv4-mapped, 6to4 and NAT64 IPv6 addresses.
How to use IPv4 to IPv6 Converter
Type an IPv4 address such as 192.168.1.1.
Read the IPv6 formats in the table, each with a short explanation of when it is used.
Click a result to copy it.
Worked example
192.0.2.128 becomes ::ffff:c000:280 (IPv4-mapped), 2002:c000:0280::/48 (6to4) and 64:ff9b::c000:280 (NAT64).
Does converting give my device an IPv6 address?
No. These are fixed ways of writing an IPv4 address inside IPv6. A real IPv6 address is assigned by your network.
Which format do programs show?
Dual-stack software often shows IPv4 clients as IPv4-mapped addresses, such as ::ffff:203.0.113.5, in logs.
Explore IP & Network Tools · More practical guides
Personalize your experience. Open with Ctrl+U (Option+U on Mac). Preferences stay in this browser when storage is available.
Menu language English (USA) Español اردو Accessibility Profiles Custom settings Vision support Reading support Reduced motion Motor support Focus support Oversized widget
Screen Reader Contrast + Smart Contrast Highlight Links Bigger Text Text Spacing Pause Animations Dyslexia Friendly Cursor Tooltips Page Structure Line Height Text Align Dictionary Saturation
Read aloud assistance Uses browser speech voices to read page text or selected text. This is not a replacement for NVDA, VoiceOver or another full screen reader. Available voices and speech processing depend on your browser and device.
Read page Read selection Pause / resume Stop reading
Reset All Accessibility Settings Move / Hide Widget Widget positionBottom right Bottom left Hide widget for 1 hour Restore at any time with Ctrl+U (Option+U on Mac).
Accessibility statement and help