CIDR Calculator

Tech Calculators

Convert CIDR notation to subnet mask and host counts.

255.255.255.0
Subnet Mask
256
Total IPs

About This Tool

Quickly convert between CIDR notation (like /24) and decimal subnet masks. See the total number of IPs and hosts per CIDR block.

Frequently Asked Questions

It means the first 24 bits of the IP address are the network address, leaving 8 bits for host addresses.

/32 is the largest, representing a single IP address with no room for additional hosts.

/0 represents the entire IPv4 address space (0.0.0.0 to 255.255.255.255).

0 Comments

Your email won't be published. Sign in to comment faster.

No comments yet. Be the first to share your thoughts!