Subnet Calculator

Calculate IP subnets, CIDR notation, network addresses, broadcast addresses, and available host ranges. Essential for network engineers and IT professionals.

Input

/0/8/16/24/32

Subnet Details

CIDR Notation192.168.1.0/24
Network Address192.168.1.0
Broadcast Address192.168.1.255
Subnet Mask255.255.255.0
Wildcard Mask0.0.0.255
First Usable IP192.168.1.1
Last Usable IP192.168.1.254
Total Hosts256
Usable Hosts254
IP ClassC

Common CIDR Reference

CIDRSubnet MaskAddressesUsable
/32255.255.255.25511
/30255.255.255.25242
/28255.255.255.2401614
/24255.255.255.0256254
/20255.255.240.04,0964,094
/16255.255.0.065,53665,534
/8255.0.0.016,777,21616,777,214
/00.0.0.04,294,967,2964,294,967,294

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