IP Subnet Calculator

Calculate IP subnet ranges, network addresses, and CIDR blocks

IP Address / CIDR

Subnet Information

Subnet calculation results will appear here

Common Subnet Examples

Class A (/8)

10.0.0.0/8
255.0.0.0
16,777,214 hosts

Class B (/16)

172.16.0.0/16
255.255.0.0
65,534 hosts

Class C (/24)

192.168.1.0/24
255.255.255.0
254 hosts

Our IP Subnet Calculator is an advanced networking tool designed for network administrators, cybersecurity professionals, and IT infrastructure experts who need precise, instant subnet calculations. In the complex landscape of network design and management, understanding subnet configurations is crucial for efficient IP address allocation, network segmentation, and security implementation.

This comprehensive calculator supports a wide range of network scenarios, providing detailed subnet information including network addresses, broadcast addresses, usable IP ranges, total host counts, and CIDR notation. It performs complex subnet calculations instantly, supporting both traditional subnet mask formats and modern CIDR notation. The tool offers a user-friendly interface that breaks down complex networking concepts into easily understandable results, making it accessible for both seasoned network engineers and professionals learning network design.

Ideal for network administrators, system architects, cybersecurity analysts, and IT professionals responsible for designing, managing, and securing network infrastructures. Whether you're planning network expansions, troubleshooting IP address conflicts, or implementing security policies, our IP Subnet Calculator provides the precision, speed, and reliability you need to make informed networking decisions.

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