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Subnet Calculator for 192.168.1.0

Calculate CIDR notation, netmask, network range, and usable hosts.

Results for 192.168.1.0
Checked: Jun 18, 2026 at 15:49 UTC
Use format: 192.168.1.0/24

What is Subnet Calculator?

Subnet Calculator converts between CIDR notation, subnet masks, and IP ranges instantly. Enter a CIDR block like 192.168.1.0/24 and get the network address, broadcast address, usable host range, and total hosts. Essential for network planning and firewall configuration.

How to use this tool

  1. Enter an IP address with CIDR notation (e.g., 10.0.0.0/16).
  2. Click Calculate to compute network details.
  3. Review: network address, broadcast address, first/last usable host, total host count.
  4. Use the wildcard mask for ACL configurations if needed.
  5. Adjust the CIDR prefix to plan different subnet sizes.

Frequently asked questions

What is CIDR notation?
CIDR uses a slash and number to indicate network size. /24 means 24 bits for network, 8 for hosts = 256 addresses (254 usable). Higher number = smaller network.
How many usable IPs per subnet?
Formula: 2^(32-prefix) minus 2. /24=254 usable, /25=126, /26=62, /27=30, /28=14. Subtract 2 for network and broadcast addresses.
What's the difference between subnet mask and wildcard mask?
Subnet mask uses 1-bits for network (255.255.255.0 for /24). Wildcard mask is the inverse (0.0.0.255). Wildcards are used in Cisco ACLs, subnet masks everywhere else.
How to split a network into subnets?
Increase the CIDR prefix. A /24 splits into two /25s, four /26s, or eight /27s. Each subnet wastes 2 addresses for network and broadcast.

Recently checked

192.168.1.0 192.168.1.0/24

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