IP Subnet Mask & CIDR Calculator

Calculate network address, broadcast address, subnet mask, CIDR prefix (/24, /28), and usable host IP ranges for IPv4 subnets.

IP Address with CIDR Prefix (e.g. 192.168.1.1/24):

Network Address:	192.168.1.0
Broadcast Address:	192.168.1.255
Subnet Mask:	255.255.255.0
Usable Host Range:	192.168.1.1 - 192.168.1.254
Total Usable Hosts:	254

About IP Subnet Mask & CIDR Calculator

The IP Subnet Mask & CIDR Calculator offers lightning-fast, client-side utility processing entirely inside your web browser. Enjoy instant code generation, calculations, and conversions without remote network latency.

How to Use This Tool

Enter your input parameters or select preset choices in the controls above.
Observe real-time updates and interactive previews.
Click to copy formatted values, CSS code snippets, or generated data to your clipboard.

Key Features & Highlights

100% In-Browser & Private: Zero data transfer to remote backend servers.
Real-Time Responsiveness: Calculations and visual previews update smoothly as you type.
Developer Friendly: Clean, standardized code output ready for production use.

Frequently Asked Questions (FAQ)

Is this tool free to use?

Yes. All tools on VibeTool are completely free and supported by clean online advertising. No subscriptions or hidden fees.

IP Subnet Mask & CIDR Calculator Online - Free Instant Calculation | Vib...