Free tool · IP & Subnetting

IP Subnet Calculator

Network, broadcast, host range, mask & wildcard from any IPv4 + CIDR.

/24
CIDR notation192.168.1.0/24
Subnet mask255.255.255.0
Wildcard mask0.0.0.255
Network address192.168.1.0
Broadcast address192.168.1.255
Usable host range192.168.1.1 – 192.168.1.254
First / last host192.168.1.1 → 192.168.1.254
Usable hosts254
Total addresses256
IP classC
Address typePrivate (RFC 1918)
Hex0xC0A80100
Binary
Address11000000.10101000.00000001.00000000
Netmask11111111.11111111.11111111.00000000
Network11000000.10101000.00000001.00000000

About this tool

Free IPv4 subnet calculator. Enter an IP address and CIDR or mask to get the network and broadcast address, usable host range, host count, subnet mask, wildcard mask, and binary breakdown — instantly, in your browser. Everything runs entirely in your browser — nothing you type is sent to a server.

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