EN EN

IP Range Calculator

Calculate network parameters from CIDR notation. Get information about IP ranges, subnet masks, and host counts.

Free Tool Instant Results

IP Range Calculation

Enter an IP address with prefix (e.g., 192.168.1.0/24)

About CIDR Notation

Format

IP-address/number_of_bits (e.g., 192.168.1.0/24)

Prefix /24

256 addresses (254 usable for hosts)

Prefix /16

65,536 addresses

Prefix /8

16,777,216 addresses

Examples
192.168.0.0/24 → 192.168.0.1-192.168.0.254
10.0.0.0/8 → Entire 10.x.x.x range
172.16.0.0/12 → 172.16-31.x.x