IT-tools

IPv4 subnet calculator

Calculate network address, broadcast, netmask, wildcard, usable host range, and address class from an IPv4 address and prefix.

Usable hosts
254
Total addresses
256
Prefix
/24
Subnet info
Network
192.168.1.0/24
Broadcast
192.168.1.255
Netmask
255.255.255.0
Wildcard
0.0.0.255
First host
192.168.1.1
Last host
192.168.1.254
Class
C
Network binary
11000000.10101000.00000001.00000000

// About this tool

Plan or troubleshoot IPv4 subnets without manual bit math. Enter an address such as 192.168.1.10/24 and review every derived value. CIDR prefixes and dotted netmasks are supported.

// How to use it

  1. Enter an IPv4 address with a prefix or netmask.
  2. Review network, broadcast, and host range.
  3. Copy the values you need.

// Frequently asked questions

Does it support CIDR notation?

Yes. Enter an address with a prefix such as /24, or provide a dotted netmask.

Is the calculation done locally?

Yes. All subnet math runs in your browser.

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