| Prefix size | Network mask | Usable hosts per subnet |
|---|
Calculate transfer times and bandwidth conversions
Check if two subnets overlap (useful for VPN planning, mergers, VLAN design)
Aggregate multiple networks into a single summary route (for OSPF/BGP)
Convert between different MAC address formats
Divide a subnet into logical allocation zones
Ultimate Network Planning Tool
Built with ❤️ for Network Engineers
Version 3.4 | © 2025