VLSM Subnet Planner

Enter a base network and the hosts each subnet needs — it allocates right-sized subnets, largest first.

base network (CIDR)

hosts needed (comma-separated)

base 192.168.1.0/24 · 256 addressesutilization 45%

Need	CIDR	Hosts	Network	Range	Broadcast
60	/26	62	192.168.1.0	192.168.1.1 – 192.168.1.62	192.168.1.63
28	/27	30	192.168.1.64	192.168.1.65 – 192.168.1.94	192.168.1.95
12	/28	14	192.168.1.96	192.168.1.97 – 192.168.1.110	192.168.1.111
2	/30	2	192.168.1.112	192.168.1.113 – 192.168.1.114	192.168.1.115