ToolsSubnet calculator
$ subnet 192.168.1.0/24
Live
subnet calculator (CIDR)
Subnet calculator
Calculate network address, broadcast address, subnet mask, host range, and usable host count.
GET/v1/cidr
Network address192.168.1.0
Broadcast address192.168.1.255
Subnet mask255.255.255.0
Wildcard mask0.0.0.255
Host range192.168.1.1 - 192.168.1.254
Usable hosts254
Network tool FAQ
What CIDR format should I enter?
Enter an IPv4 address and prefix length such as 192.168.1.44/24.
What is the network address?
It is the first address in the subnet and identifies the subnet itself.
What is the broadcast address?
It is the final address in most IPv4 subnets and is reserved for broadcast traffic.
Why are usable hosts lower than total addresses?
Traditional IPv4 subnetting reserves network and broadcast addresses, except for special small ranges.
Does this support IPv6?
No. This calculator is scoped to IPv4 CIDR math.
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