IP Subnet Calculator
Calculate IP subnet details — network address, broadcast, usable hosts, and more.
🔒 No uploads⚡ Instant🆓 Free
Network Address192.168.1.0
Broadcast Address192.168.1.255
Subnet Mask255.255.255.0
Wildcard Mask0.0.0.255
First Usable Host192.168.1.1
Last Usable Host192.168.1.254
Total Addresses256
Usable Hosts254
IP ClassC
IP (Binary)11000000.10101000.00000001.01100100
Mask (Binary)11111111.11111111.11111111.00000000
How It Works
1
Enter an IP address.
2
Select the CIDR or subnet mask.
3
View calculated subnet details.
Features
✓CIDR notation support
✓Network and broadcast address
✓Usable host range
✓Wildcard mask
✓Binary representation
✓No data leaves your browser
Frequently Asked Questions
What is CIDR?▼
CIDR (Classless Inter-Domain Routing) is a method for allocating IP addresses. For example, /24 means 256 addresses (254 usable hosts).
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