Plan multiple named VLAN subnets carved from a single parent network block — specify how many hosts each VLAN needs and get exact ranges instantly.
VLAN ID
Name
Hosts Needed
VLAN Plan
VLAN ID
Name
Network / CIDR
Usable Host Range
Broadcast
Usable Hosts
VLANs are allocated largest-first for efficient packing, then sorted back to your original order. Hover any Network/CIDR value to see its subnet mask. All calculations happen locally using standard binary arithmetic.