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IP Subnet Calculator

Calculate network address, broadcast, and host range.

Free • Unlimited (Beta)

Limits will be introduced later; early users will get benefits.

IP Subnet Network
Enter IP address (e.g.: 192.168.1.1)
Enter subnet mask (e.g.: 255.255.255.0) or CIDR (e.g.: 24)

Examples:

  • 192.168.1.1 / 255.255.255.0 or 24
  • Supports both subnet mask (255.255.255.0) and CIDR notation (24).

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About – IP Subnet Calculator

Overview

Calculate network address, broadcast, and host range.

Common use cases

Use this tool for common tasks like conversion, validation, or analysis. Data is not stored on our servers.

Tips

Use the copy button on the page for results. If you see an error, check your input.

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FAQ

Calculate network address, broadcast, and host range.

Yes. No sign-up required.

No. We do not store your input.

Enter your input, click the relevant button, and copy the output.

Invalid format or empty input may trigger a warning. Read the message and correct your input.