About IP Subnet Calculator
What is IP Subnetting?
IP subnetting divides a network into smaller sub-networks, improving security, performance, and IP address management. Essential for network design and administration. Read comprehensive guide →
Key Features:
- • Calculate network and broadcast addresses
- • Determine usable host range
- • Binary representation display
- • Advanced subnet splitting with VLSM
- • CSV export for documentation
CIDR Notation:
/24 = 255.255.255.0 (254 hosts)
/16 = 255.255.0.0 (65,534 hosts)
/8 = 255.0.0.0 (16,777,214 hosts)
Common Use Cases:
- • Network planning and design
- • VLAN configuration
- • Router and firewall setup
- • IP address allocation
IP Subnet Calculator
Enter IP address without CIDR
Quick Examples
Results
Enter IP/CIDR and click Calculate to see results
Disclaimer: All content, tools, and calculators are provided for informational purposes only. Please verify information from authorized sources before making any decisions.