Broadcast Address Calculator

Find broadcast address of any subnet. Network OR inverted mask.

IP address

Prefix

Broadcast address192.168.1.255

How to read the result

Broadcast = network with all host bits set. Last address, reserved, never assigned.

Example

192.168.1.130/25 → broadcast 192.168.1.255

FAQ

Usable?

No. Broadcast reserved. Last usable is broadcast−1 (except /31).