IP Address & Subnet Calculator

Network & broadcast address, CIDR, subnet mask, subnetting (FLSM) and VLSM allocation tables.

All tools Number System Converter IEEE 754 Floating Point 1's & 2's Complement IP Address / Subnet / VLSM Boolean Expression Solver Truth Table Generator K-Map Solver SOP ⇄ POS Converter

Network details

Binary working

Network address = IP address AND subnet mask. Broadcast address = network address with all host bits set to 1.

Summary

Subnets

Summary

VLSM allocation table