Everyday tools

IPv4 subnet calculator

Find network, broadcast and subnet mask.

Let’s run the numbers

USD

Enter your values, then calculate.

◇ Calculated on your device. No account needed.

THE NUMBERS, MADE CLEARInstant calculation
=

Your answer starts here

Check your inputs and select Calculate.

Calculated from your inputs; displayed results are rounded.

BEHIND THE NUMBERS

Formula & assumptions

Network = IPv4 AND mask

Calculated from your inputs; displayed results are rounded.