Subnet calculator

Simple web tool to help you create subnets.

Network

Any IP...

Mask

Max host number

/

Network address

192.168.0.0

Host address range

192.168.0.1 → 192.168.0.254

Host number

254

Subnet mask

255.255.255.0

Broadcast address

192.168.0.255

Please enter all the fields

© 2021-2025 Alessandro Amella | www.bitrey.dev | GitHub | MIT License

Originally created during my time at ITIS Fermi high school to help me and my classmates with subnetting exercises.