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IP Range Calculator

Convert between IP ranges and CIDR notation, calculate host counts.

Networking v1.0.0 214 uses

About This Tool

This IP range calculator converts between IP address ranges and CIDR notation while computing subnet details including host counts, network addresses, and broadcast addresses. It is a must-have tool for network engineers, system administrators, and DevOps professionals who need to plan subnets, configure firewalls, or allocate IP address blocks. Enter a CIDR block or IP range and get a complete breakdown of the subnet properties.

How to Use

  1. 1 Enter an IP address range (start and end) or a CIDR notation block
  2. 2 Click 'Calculate' to convert and compute the subnet details
  3. 3 Review the results including network address, broadcast address, subnet mask, and total host count
  4. 4 Use the calculated information for network planning, firewall rules, or infrastructure documentation
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