CIDR to IP Range
Expand a CIDR notation to see the full IP range, total addresses, and usable hosts.
How to Use the CIDR to IP Range Calculator
Enter a CIDR notation (e.g., 192.168.1.0/24) and click Calculate Range. The tool shows the first IP, last IP, total addresses, usable hosts, subnet mask, and more. For small ranges (up to /28), it also lists all individual IPs.
Common CIDR Prefixes
- /24 — 256 addresses (254 usable). Typical home/office network
- /16 — 65,536 addresses. Large organization network
- /8 — 16,777,216 addresses. Very large network (10.0.0.0/8 is private)
- /32 — 1 address. Single host
- /28 — 16 addresses (14 usable). Small subnet