Ease of Use
ipcalc provides a simple web interface where users can input an IP address and subnet mask to calculate network information quickly without needing in-depth networking knowledge.
Multifunctional
In addition to basic subnet calculation, ipcalc provides detailed information such as network and broadcast addresses, wildcard mask, and host range.
Free Tool
ipcalc is available for free use online, making it accessible to anyone without the need for payment or registration.
Quick Results
The tool processes inputs almost instantly, providing users with fast results necessary for network configuration tasks.
I love jodies ipcalc, and it come with a CGI wrapper (bottom of page). http://jodies.de/ipcalc. Source: almost 2 years ago
On almost any new computer, I install ipcalc - super simple to give you all the important bits about a subnet, and you can use it to split a subnet up. Source: about 2 years ago
Best way I think of it is that 0.0.0.0/0 is a "plug" for all possible IPs inside your private networks netmsk (255.255.255.250). Plug those numbers into this calc to see what I mean. https://jodies.de/ipcalc seeing your full network config typing ifconfig or ipconfig will suddenly make much more sense. Took me years to learn that after just memorizing but not really understanding it (and having to unlearn that... Source: about 2 years ago
If you want to do fast subnetting, you can use ip subnet calculator https://jodies.de/ipcalc. Source: over 2 years ago
Your answer is here https://jodies.de/ipcalc. Source: over 2 years ago
I also expected that one. It's available as a web service too: https://jodies.de/ipcalc. - Source: Hacker News / almost 3 years ago
Go to https://jodies.de/ipcalc and plug in the values for your IP address and Netmask (for example, 192.168.1.1/24 - 192.168.1.1 is your IP address, 24 is your Netmask), click calculate. Source: almost 3 years ago
To understand better how subnets work (besides reading upon the docs) you can play a bit with ipcalc. Source: almost 3 years ago
There are a number of free online IP calculators which can help you understand how this value affects results. I personally use https://jodies.de/ipcalc. Source: about 3 years ago
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