Subnet Calculator

IP Address:
or enter here
CIDR Prefix Size:
Netmask:
Wildcard Mask:
Number of Addresses:
Network Address:
Broadcast Address:
First Host:
Last Host:
CIDR Notation:

Welcome to HowToSubnet.com where you can make use of our helpful subnet calculator and tools to calcuate your subnet formulas easy! Start by using our fully loaded swiss army calculator above or visit the tool section!

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Stop racking your brain with hard to understand manual calculations. Our tools we show you how to subnet the easy and helpful way.

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Experience the easiest to use subnet calculator and networking calculation tools to configure your network configuration better.

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Precise calculations that will help you determine exactly what a subnet calculator should do. Put the trust in automation with our tools.

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Our calculator and tools process fast with no lag so you do not have to wait for formulas to be completed. See answers instantly!