IP Subnet Calculator

Calculate subnet mask, network, broadcast, and host range.

IP Address

CIDR

Network Address192.168.1.0

Subnet Mask255.255.255.0

Broadcast Address192.168.1.255

First Host192.168.1.1

Last Host192.168.1.254

Usable Hosts254

Wildcard Mask0.0.0.255

About IP Subnet Calculator

This is a free, fast, and fully client-side ip subnet calculator tool. All processing is done locally within your browser to ensure maximum privacy and security. No data is sent to our servers. Bookmark this page for quick access to ad-free, high-performance SEO and developer utilities.