Calculate subnet network using IP address, subnet mask, subnet bits, mask bits, maximum IP subnets and maximum hosts per subnet.
Support classless supernetting (CIDR)
- Support for Apple Silicon Mac
- Dark mode
- Selectable fields for copy
- New App Icon (Big Sur style)
- Bad IP address format alerts
- Better App resizing behaviour
Ratings and ReviewsSee All
Excellent subnet calculator
The layout is good, the data returned is accurate. There’s a number of paid subnet calcs out there, and I can’t find any compelling reason to use them when this one is available. The only shortcoming is that it only goes down to a /8. I can’t think of a compelling reason not to just go all the way down to 1. A small quibble.
Four tabs--four tasks. This calculator is great for doing the task at hand, and presents the information clearly. However, I think there is a little too much whitespace, especially in the CIDR tab. As a CCNA student, it's a great tool while I try to wrap my head around subnetting, while not getting left behind during lectures.
Does what I need it to do for IPv4. However, please add support for IPv4 multicast subnetting. Furthermore, please allow coping from the fields themselves. For instance I want to copy the subnet ID out. It aggrivates me that I can not do that.
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The developer does not collect any data from this app.
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With Family Sharing set up, up to six family members can use this app.