Network Tools
Find clear answers to common questions about IP Range Calculator, including usage, output, and common issues.
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.
IP Range Calculator is useful for quick network checks, validation, and troubleshooting when you want a simple browser-based result.
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.
IP Range Calculator is useful for quick network checks, validation, and troubleshooting when you want a simple browser-based result.
Start by checking the input format, removing accidental spaces or unsupported characters, and comparing your input against the example pattern on the page.
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.
If you want to see realistic input and output patterns, open the examples page. If you want step-by-step usage guidance, open the guide page.
Open the main IP Range Calculator page to test your own input and generate a live result.