IP Subnet Calculator
/
An IP subnet calculator determines network address, broadcast address, usable host range, and total hosts from an IP address and CIDR notation (e.g. 192.168.1.0/24).
- 1CIDR /n = first n bits are network, rest are host bits
- 2/24 = 256 total addresses (254 usable)
- 3Subnet mask: /24 = 255.255.255.0
- 4Usable hosts = 2^(32−n) − 2
192.168.1.100/24=Network: 192.168.1.0; Broadcast: 192.168.1.255; Usable: .1–.254 (254 hosts)
| CIDR | Subnet mask | Usable hosts |
|---|---|---|
| /30 | 255.255.255.252 | 2 |
| /28 | 255.255.255.240 | 14 |
| /27 | 255.255.255.224 | 30 |
| /24 | 255.255.255.0 | 254 |
| /22 | 255.255.252.0 | 1,022 |
| /16 | 255.255.0.0 | 65,534 |
References
🔒
100% Grátis
Sem registo
✓
Preciso
Fórmulas verificadas
⚡
Instantâneo
Resultados imediatos
📱
Compatível com móvel
Todos os dispositivos