Free IP Subnet Calculator

Looking for a free solution? You are in the right place. Calculate network range, broadcast address, and usable hosts from IP/CIDR.

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IP Subnet Calculator

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Calculate CIDR and Subnet Masks

IP Address / CIDR *

How It Works

Enter IP with CIDR (e.g. 192.168.1.1/24)
Click Process
Get Network Details

Use Cases

Network setup
Firewall configuration
Cloud security

Frequently Asked Questions

IPv6?

Supports both IPv4 and IPv6.

Is the IP Subnet Calculator free to use?

Yes, completely. The IP Subnet Calculator is 100% free with no hidden fees, subscriptions, or limits.

Is my data safe when using this tool?

Absolutely. Your data never leaves your device. The IP Subnet Calculator is a client-side tool, meaning all processing happens locally in your own browser.

Do I need to install any software?

No installation is required. This is a purely web-based application that works instantly on any modern browser across Windows, Mac, Linux, and mobile devices.

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