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Network Tools
Broadcast Address Calculator

network tools

Broadcast Address Calculator

Find the broadcast address for any IP and subnet mask, with a step-by-step binary OR explanation of how the wildcard mask produces it.

IP Address

Subnet Mask

Broadcast Address

IP Address192.168.1.37

Subnet Mask255.255.255.0

Broadcast Address192.168.1.255

Binary explanation

IP11000000.10101000.00000001.00100101

Mask11111111.11111111.11111111.00000000

Result11000000.10101000.00000001.11111111

Invert the subnet mask to get the wildcard mask (all host bits set to 1).
Apply a bitwise OR between the IP address and the wildcard mask.
Each bit of the result is 1 where either input has a 1.
The OR result is the broadcast address of the subnet.

How to Use