Subnet Calculator
Effortlessly calculate CIDR notation, network masks, and host ranges for your cloud and on-premises networks with our user-friendly online subnet calculator.
Effortlessly calculate CIDR notation, network masks, and host ranges for your cloud and on-premises networks with our user-friendly online subnet calculator.
A subnet calculator is an essential tool for network engineers, cloud architects, DevOps, developers and IT professionals. This guide will walk you through how to effectively use a subnet calculator to plan, design and manage your network infrastructure well.
A subnet calculator is an assistant that helps you determine various network parameters from an IP address and subnet mask. It's important for:
Input your base IP address (e.g., 192.168.1.0) into the calculator's IP address field.
The mask can be selected from the available formats using the dropdown menu:
255.255.255.0)/24)If the answer is yes, select the 'Calculate for AWS Network' checkbox.
The calculator will display important network information:
Let's calculate a subnet for a small office network:
192.168.1.0255.255.255.0 (or /24)Results:
This subnet calculator is designed to assist developers, DevOps engineers, network engineers, IT professionals, Cloud Architects, and software engineers in configuring their cloud networks. It's also readily available for anyone who needs to perform subnet calculations.
Created by a Network Cloud Engineer with over 15 years of experience. This tool is designed based on classic networking fundamentals, although the output has been adapted for compatibility with some public cloud providers.
I guess that it is self-explained but let me goTo utilize an IP subnet calculator, I simply input the network address and subnet mask. The calculator then outputs relevant subnet information such as the usable IP address range, number of subnets, number of hosts per subnet, network address, broadcast address, subnet mask, wildcard mask, and IPv4 APR domain.
Yes, this calculator can be used in cloud environments. The networking concepts and subnetting principles generally apply. However, you need to consider some reserved IP addresses that may differ in cloud environments.
To calculate the subnet mask, you need to determine the number of bits required for the network portion and the remaining bits for the host portion. The formula to calculate the subnet mask is 2^n - 1, where n is the number of bits in the network portion. For example, if you have 3 bits for the network portion, the formula would be 2^3 - 1 = 7, which means the subnet mask would be 255.255.255.248.
Subnetting is fundamentally rooted in binary. Displaying the binary representation of IP addresses and subnet masks helps you visualize how subnets are represented in the way computers store and process information using binary code (1s and 0s).
Technically, a subnet mask is a 32-bit number used to divide IP addresses into two parts: network and host addresses. The first part identifies the network to which the device belongs, while the second part identifies the device itself within that network.
Better IP allocation by dividing a large network into smaller subnetworks. Better network performance by reducing the number of broadcast domains and their size. Improved security by limiting the scope of potential attacks.