Subnet Calculator – Calculate subnet masks, CIDR ranges, host addresses, and divide networks into efficient subnets.
The Subnet Calculator helps you divide an IP network into smaller subnets, calculate subnet masks, CIDR notations, and determine usable host ranges. It is an essential tool for network administrators, IT engineers, and cybersecurity experts who need to optimize IP address allocation and reduce network congestion.
✅ Subnet mask and prefix length (/CIDR)
✅ Network address and broadcast address
✅ Usable host IP range in each subnet
✅ Total number of possible subnets and hosts
✅ Classful and classless subnetting
Supports both IPv4 and IPv6 subnetting
Provides instant calculation of network details
Helps avoid IP conflicts and optimize IP allocation
Simplifies subnetting for large enterprise networks
📌 Network administrators planning IP distribution
📌 IT students learning subnetting concepts
📌 Cybersecurity teams managing secure networks
📌 Businesses organizing large IP address blocks
Subnetting reduces broadcast traffic and improves network security by isolating segments.