$netmask-convert 255.255.255.0

Netmask to CIDR Converter

Enter a subnet mask like 255.255.255.0 or a CIDR prefix like /24 to instantly convert between the two formats. Get bi-directional netmask to CIDR conversion with wildcard mask, total hosts, and network size details — useful for translating between router configurations and IP address documentation.

Netmask → CIDR

Subnet Mask

CIDR Result
/24

CIDR → Netmask

CIDR Prefix

Netmask Result

255.255.255.0

Additional Details

Wildcard Mask

0.0.0.255

Total Addresses

256

Usable Hosts

254

Binary Mask

11111111.11111111.11111111.00000000

Complete Conversion Reference

CIDR	Netmask	Wildcard	Hosts

Related Network Tools

Tool	Tool
Calculate Subnet Mask	Convert IP to Binary
Calculate Wildcard Mask	Abbreviate IPv6
IPv4 IPv6 Translator	Expand Shortened IPv6

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