Network Tools
Calculate the usable IP range for an IPv4 subnet from CIDR input.
Use this IP Range Calculator to find the network address, first usable IP, last usable IP, broadcast address, and total host count for an IPv4 subnet. It is useful for subnetting practice, network planning, and quick troubleshooting.
Use this IP Range Calculator to find the network address, first usable IP, last usable IP, broadcast address, and total host count for an IPv4 subnet. It is useful for subnetting practice, network planning, and quick troubleshooting.
Use ip range calculator when you need a fast browser-based result without extra setup. It works well for quick checks, one-off tasks, and routine formatting or calculation work.
Read step-by-step usage guidance, best practices, and common mistakes.
See common questions and answers about input, output, and tool usage.
Review practical input and output examples before running the tool.
Find similar and supporting tools for adjacent actions and follow-up tasks.
Input
192.168.1.10/24
Output
Network: 192.168.1.0 First Usable: 192.168.1.1 Last Usable: 192.168.1.254 Broadcast: 192.168.1.255 Total Addresses: 256 Usable Hosts: 254
Shows the standard usable host range for a /24 subnet.
Input
10.0.0.5/30
Output
Network: 10.0.0.4 First Usable: 10.0.0.5 Last Usable: 10.0.0.6 Broadcast: 10.0.0.7 Total Addresses: 4 Usable Hosts: 2
Useful for small point-to-point style IPv4 subnets.
Fix: Use a format like 192.168.1.10/24.
Fix: Make sure each IPv4 octet is between 0 and 255.
Fix: Use a prefix between 0 and 32.
It calculates the network address, usable host range, broadcast address, and address counts for an IPv4 subnet.
Use IPv4 with CIDR notation, such as 192.168.1.10/24.
No. This version is for IPv4 subnet calculations only.
It is the range between the network address and the broadcast address, excluding both in standard subnets.
It helps with subnetting, network design, exam prep, and avoiding manual calculation mistakes.