IPv4 Subnet & CIDR Range Calculator
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Calculate IPv4 network address, broadcast address, usable IP range, CIDR prefix, wildcard mask, and binary representation.
IPv4 & CIDR Input
Calculated Network Details
Network Address: 192.168.1.0
Broadcast: 192.168.1.255
First Usable Host: 192.168.1.1
Last Usable Host: 192.168.1.254
Usable Hosts: 254
Subnet Mask: 255.255.255.0
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Direct In-Browser Handoff
IP Subnetting & Addressing Pipeline
Chain this tool with complementary private browser utilities for a complete zero-server workflow:
Helpful Examples
Class C /24 Subnet
192.168.1.50 with a /24 subnet mask.
IP: 192.168.1.50, Prefix: /24How to Use the IPv4 Subnet & CIDR Range Calculator
Essential IP network engineering utility. Enter an IPv4 address and CIDR prefix (e.g., 192.168.1.100 /24) to inspect the network ID, broadcast IP, first and last usable host IPs, total usable host count, wildcard mask, and full 32-bit binary octet breakdowns.
Privacy & Data Processing Notice
No user data leaves your browser. Computation is executed entirely on your device. We do not store, view, or transmit your inputs over our network. Your computation remains on your personal machine.
Frequently Asked Questions
What is CIDR notation?
Classless Inter-Domain Routing (CIDR) notation denotes an IP address followed by a slash and the number of leading 1-bits in the subnet mask (e.g., /24 equals 255.255.255.0).
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