IP Subnet Calculator - IPv4 & IPv6

Free online subnet calculator for both IPv4 and IPv6 networks. Calculate network addresses, ranges, masks, and more.

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IPv4 Subnet Calculator

Calculate network address, broadcast address, usable host range, and subnet mask for IPv4 networks.

  • • Network & broadcast addresses
  • • Usable host ranges
  • • Subnet masks
  • • CIDR notation
  • • Binary & hexadecimal conversion
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IPv6 Subnet Calculator

Calculate network prefix, interface identifier, and address ranges for IPv6 networks.

  • • Network prefixes
  • • Address ranges
  • • Prefix lengths
  • • Interface identifiers
  • • Address compression

Popular Calculations

Common IPv4 Subnets

192.168.1.0/24
Home network default
10.0.0.0/8
Private network (RFC 1918)
172.16.0.0/16
Private network (RFC 1918)

Common IPv6 Networks

2002::
6to4 tunneling
2001:db8::
Documentation prefix
2001::
Teredo tunneling

About this Calculator

Free online subnet calculator for both IPv4 and IPv6 networks. Calculate network addresses, ranges, masks, and more.

Related Searches

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