CIDR IPv4 Subnet Calculator

Calculate network address, broadcast address, netmask, wildcard mask, and assignable host ranges instantly from a given IP and CIDR mask.

IP Address

Subnet Mask (CIDR)/24

08162432

Slide to adjust the CIDR notation mask length. Valid inputs are between 0 and 32.

Invalid IP Address Format.

About CIDR IPv4 Subnet Calculator

This is a free, fast, and fully client-side cidr ipv4 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.