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Usage tip: Simply enter the IP and prefix to calculate automatically. All data is processed locally and never uploaded to any server.
Enter IP Address & CIDR
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.
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/
Binary Representation
Calculation Results
Subnet Mask
255.255.255.255
Network Address
192.168.1.1
Broadcast Address
192.168.1.1
First Usable IP
192.168.1.1
Last Usable IP
192.168.1.1
Usable IP Count
1
Technical References
- CIDR — RFC 4632: https://www.rfc-editor.org/rfc/rfc4632
Frequently Asked Questions
What is CIDR?
CIDR (Classless Inter-Domain Routing) represents IP address ranges with a /prefix length, e.g., 192.168.1.0/24.
What can it calculate?
It automatically computes the network address, broadcast address, and usable IP range, with binary view and full results.
Technical References
- CIDR — RFC 4632: https://www.rfc-editor.org/rfc/rfc4632