IP Subnet Calculator

Calculate network details for IPv4 and IPv6 addresses. Get network address, broadcast, host range, subnet mask, and CIDR notation instantly.

IP Version:

IPv4

IPv6

Preset Networks:

Class C (/24)

Class B (/16)

Class A (/8)

IPv4 Address:

Subnet Mask / CIDR: /24

192.168.1.0/24

Network Address: 192.168.1.0
Broadcast Address: 192.168.1.255

First Host

192.168.1.1

Last Host

192.168.1.254

Total Hosts

254

IP Class

Class C

Note: IPv4 calculations use standard subnetting rules. For IPv6, the prefix length determines the network portion.

Common IPv4 Subnet Reference

CIDR	Subnet Mask	Total IPs	Usable Hosts

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