IP Address Calculator — Free Online
Use IP Address Calculator online for free. Fast, secure processing — files are deleted immediately after download. No sign-up required.
CIDR Notation
Common Subnets
💡 IP Address Calculator
- Calculate subnet information from CIDR notation
- Find network, broadcast, and host ranges
- Quick buttons for common subnet masks
- Perfect for network planning and subnetting
Frequently Asked Questions about IP Address Calculator
- Is IP Address Calculator completely free to use?
- Yes, IP Address Calculator is 100% free with no sign-up, no watermarks, and no usage limits.
- Are my uploaded files safe and private?
- Yes. Files are uploaded over HTTPS, processed securely on our servers, and permanently deleted immediately after your download. We never store, view, or share your files.
- What is the maximum file size?
- You can upload files up to 1 MB. For larger files, consider compressing or splitting them first.
- How accurate are the results?
- All calculations use standard, well-established formulas and are accurate to at least 4 decimal places. Results are for guidance.
- Does IP Address Calculator work on mobile and tablet?
- Yes, IP Address Calculator is fully responsive and works in all modern browsers on desktop, tablet, and mobile.
Files are processed securely and permanently deleted after download. Never stored or shared.