Calculate network details, subnet masks, host ranges, and more. Essential tool for network administrators and IT professionals.
Calculate network details, subnet masks, and host ranges for IPv4 addresses
Calculate network prefixes and address ranges for IPv6 addresses
IP networks are divided into smaller subnets using subnet masks
Calculate available host addresses within each subnet
Efficiently plan and organize network infrastructure
| CIDR | Subnet Mask | Usable Hosts |
|---|---|---|
| /24 | 255.255.255.0 | 254 |
| /25 | 255.255.255.128 | 126 |
| /26 | 255.255.255.192 | 62 |
| /27 | 255.255.255.224 | 30 |
IP subnetting is the process of dividing an IP network into smaller, more manageable sub-networks. It helps in efficient network organization and improved security.
A subnet calculator helps network administrators quickly determine important network information like available host addresses, broadcast addresses, and network ranges without manual calculation.
CIDR (Classless Inter-Domain Routing) notation is a compact method of specifying IP addresses and their subnet masks. For example, 192.168.1.0/24 represents an IP address with a 24-bit subnet mask.
Choose a subnet mask based on the number of required host addresses and subnets. Larger subnet masks (like /24) provide more host addresses, while smaller ones create more subnets with fewer hosts each.
What our users say about our IP Subnet Calculator
Based on 31 reviews from satisfied users
@michaelnetadmin
"As a network administrator, this IP subnet calculator has become my go-to tool for daily network planning. The IPv4 and IPv6 support is fantastic, and the detailed binary representations help me explain concepts to junior engineers. The all-subnets table feature is brilliant for network design."
@jenniferccna
"I'm studying for my CCNA certification and this tool has been invaluable. The step-by-step calculations and comprehensive results help me understand subnetting concepts better than any textbook. The wildcard mask and CIDR notation features are exactly what I needed."
@daviditpro
"Perfect tool for IT professionals! I use it daily for troubleshooting network issues and planning new deployments. The IPv6 support is excellent, and the interface is clean and intuitive. Saves me hours of manual calculations."
An IP Subnet Calculator is an essential networking tool that helps network administrators and IT professionals plan and manage IP networks efficiently. This calculator supports both IPv4 and IPv6 addressing, providing comprehensive subnet calculations, network ranges, and detailed binary representations.
Proper subnetting helps isolate network segments, reducing security risks and containing potential network issues within smaller, manageable areas.
Subnetting reduces network congestion by creating smaller broadcast domains and optimizing network traffic flow.
Efficient IP address allocation through subnetting helps prevent address wastage and simplifies network management.
Well-planned subnetting allows for future network growth while maintaining efficient address utilization.
When planning your network subnets, consider these best practices:
Our IP Subnet Calculator stands out with its comprehensive feature set, intuitive interface, and support for both IPv4 and IPv6 calculations. Whether you're a network administrator, IT professional, or student, this tool provides all the information you need for effective network planning and management.
Start using our calculator today to simplify your network calculations and make informed decisions about your network architecture.
