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Subnet Calculator

Calculate subnet details from IP address and CIDR notation or subnet mask.

Networking v1.0.0 57 uses
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/0 /8 /16 /24 /32

About This Tool

This subnet calculator computes detailed network information from an IP address paired with CIDR notation or a subnet mask. It displays network address, broadcast address, usable host range, number of hosts, and wildcard mask. The tool is indispensable for network administrators, IT professionals, and students studying networking who need to quickly plan IP address allocation and understand subnet boundaries.

How to Use

  1. 1 Enter an IP address along with CIDR notation (e.g., /24) or a subnet mask
  2. 2 Click calculate to compute all subnet details
  3. 3 Review the results including network address, broadcast address, host range, and total hosts
  4. 4 Use the information for network planning, troubleshooting, or IP address management
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