Subnet Calculator

Developed by Hemant Parashar, B.Sc.

Enter an IP address with CIDR notation to calculate network address, broadcast address, host range, and more.

General Purpose Disclaimer

This tool is developed for educational and quick reference purposes. Calculations should be verified independently for critical applications.

IP Address / CIDR

Subnet Information

IP Address
Network Address
Usable Host Range
Broadcast Address
Subnet Mask
Wildcard Mask
CIDR Notation
Usable Hosts
IP Class
IP Type
Binary Subnet Mask

How to Use the Subnet Calculator

Provides subnets, CIDR ranges, network boundaries, and host capacities for IP networks. Follow these instructions to compute your results accurately:

Input an IP address, select the subnet mask, and view network info.
Double-check all inputs to prevent calculation errors.
Results are processed instantly in your browser via client-side scripts.

Mathematical Formulas & Calculation Principles

The underlying calculations rely on the following mathematical logic:

            Subnet Mask = Bits set to 1 in network portion
          

Frequently Asked Questions (FAQ)

Q: What is CIDR notation?

A: CIDR notation represents an IP address and its subnet mask using a slash followed by the number of network bits (e.g., /24 represents 255.255.255.0).

This tool was developed and verified by Hemant Parashar, B.Sc. Graduate and part-time blogger, to provide free, high-accuracy mathematical resources for educational use. Complex parameters were reviewed by Hemant Parashar (B.Sc. Graduate & Lead Developer).