IP Subnet Calculator

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

IP Address

CIDR

Network192.168.1.0

Broadcast192.168.1.255

Subnet Mask255.255.255.0

First Host192.168.1.1

Last Host192.168.1.254

Total 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.