IP Address Calculator
Calculate ip address with this free online tool
Calculate IP address ranges, CIDR notation, and subnet masks with our IP address calculator. Essential tool for network administrators and IT professionals to understand IP addressing, subnetting, and network planning.
Key Features
Convert between CIDR and subnet notation
Calculate network and broadcast addresses
Determine IP address ranges
Support for IPv4 and IPv6
Visualize subnet masks
Generate network configuration details
Ip Address Calculator
Enter IP Address
Input an IP address in dotted decimal notation (e.g., 192.168.1.1)
Specify Subnet Mask
Enter the subnet mask or CIDR notation (/24, /16, etc.)
Calculate
Click the calculate button to process
Review Results
See network address, broadcast address, and usable range
Export Data
Copy or export the network configuration
Use Cases
Plan and design network infrastructure
Configure routers, switches, and firewalls
Allocate IP addresses for network expansion
Troubleshoot network connectivity issues
Document network topology and configurations
Study for networking certifications
Frequently Asked Questions
What is CIDR notation?
CIDR is a compact representation of IP address ranges (e.g., 192.168.0.0/16).
How many IPs are in a /24 subnet?
A /24 subnet contains 256 addresses (254 usable after removing network and broadcast).
What's the difference between private and public IPs?
Private IPs are for internal networks; public IPs are routable on the internet.
How do I calculate usable host addresses?
Total IPs minus 2 (network and broadcast). For a /24: 256 - 2 = 254 usable.
Can I use this for IPv6?
Yes, the calculator supports both IPv4 and IPv6 address formats.
Tool Information
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