Design and debug your network subnets with ease. Calculate CIDR ranges, subnet masks, network IDs, and broadcast addresses instantly. 100% private and browser-based for network engineers.
📡 Launch IP Calculator → ⚡ Real-time Subnetting • 🔒 100% Private • 🚀 CIDR & IPv4 SupportDetermine your network's size and range instantly using CIDR notation. Supports all standard subnets from /0 to /32.
Your internal network architecture stays private. All calculations happen locally in your browser's RAM; no IP addresses are ever sent to our servers.
Get a complete breakdown of any IP/Subnet: Network Address, Broadcast Address, Wildcard Mask, and total usable host range.
Built for speed. Results update simultaneously as you adjust the IP or mask, allowing for rapid network planning and troubleshooting.
Input the IPv4 address you want to analyze (e.g., 192.168.1.1).
Choose your CIDR prefix (e.g., /24) or enter a traditional subnet mask (255.255.255.0).
Instantly view the first usable host, last usable host, and total number of addresses available.
Design multi-tiered VLAN architectures and determine exactly how many usable hosts each subnet can accommodate.
Identify the exact network and wildcard masks needed for security rules and access control lists (ACLs).
Plan your AWS VPC or Azure VNet subnets accurately to ensure efficient IP allocation across your cloud resources.
We respect your privacy. Our IP Calculator runs purely in your browser's RAM; no network configurations or addresses are logged or saved.
Classless Inter-Domain Routing (CIDR) is a method for allocating IP addresses and IP routing. It uses a slash followed by a number to represent the network prefix length.
A /24 subnet contains 256 total addresses. After excluding the network and broadcast addresses, it provides 254 usable host addresses.
Yes! PixelOkay provides this and all other developer tools for free with no daily limits or registration required.