🧮 Subnet Calculator
Quickly calculate network, broadcast, wildcard mask, and usable hosts.
Calculator Details
Reference Guide
Classful Ranges
- Class A: /8 (1.0.0.0 - 126.255.255.255)
- Class B: /16 (128.0.0.0 - 191.255.255.255)
- Class C: /24 (192.0.0.0 - 223.255.255.255)
Private Ranges (RFC 1918)
- 10.0.0.0/8
- 172.16.0.0/12
- 192.168.0.0/16