Start IP
192.168.1.0
End IP
192.168.1.255
Subnet Mask
255.255.255.0
Total IPs
256
Prefix length: /24 | Usable hosts: 254 (excludes network and broadcast)
FAQ
What is CIDR notation?
What is a subnet mask?
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About IP Range Calc
Working with developer and design work no longer requires installing heavy desktop software — IP Range Calc runs entirely in your browser, instantly. Everything happens client-side, which means your files and data never leave your machine. The interface is intentionally minimal so you can focus on the task instead of learning the tool. If you find yourself doing this regularly, the rest of the developer suite covers most adjacent tasks with the same approach.
When you'd reach for IP Range Calc
You're on a public or shared machine and don't want to leave traces of what you're working on.
Travelers, contractors, anyone working from a friend's computer.
Nothing is uploaded, nothing persists if you're not signed in.
You're cleaning up a folder of files that accumulated over a project and need to standardize them.
Designers, writers, and developers wrapping up deliverables.
Drop each file in, copy the output, move on.
You're hitting the daily limit of a paid SaaS and need a backup option for a single quick job.
Marketers and ops people whose primary tool is metered.
Stay productive without burning credits.
You need to handle a one-off task right before a meeting and don't have time to install anything.
Anyone working remotely on a borrowed or restricted machine.
Open the page, get the result, paste it into your doc — under a minute.
Frequently asked about IP Range Calc
- Is IP Range Calc really free?
- Yes — IP Range Calc is free for unlimited personal use, with no account required and no watermark on the output.
- Does IP Range Calc work on mobile?
- Yes, IP Range Calc is fully responsive and tested on iOS Safari and Android Chrome.
- Are my files uploaded to a server when I use IP Range Calc?
- IP Range Calc processes everything in your browser using local APIs. Your files never leave your device.
- Do I need to create an account to use IP Range Calc?
- No. IP Range Calc works without any signup. We only ask for an email if you decide to subscribe to a paid plan.
- What browsers does IP Range Calc support?
- Every modern browser released in the last three years: Chrome, Firefox, Safari, Edge, Brave, Opera.