About Us

AWS Subnet Calculator is a purpose-built tool designed to help AWS users accurately plan their VPC and subnet CIDR blocks, with a focus on AWS-specific requirements and best practices.

Unlike generic subnet calculators, this tool accounts for AWS-reserved IP addresses, subnet sizing constraints, and multi-AZ deployment considerations. It also offers export options in JSON, CSV, and Infrastructure-as-Code formats to streamline your infrastructure planning and documentation.

The calculator was created by a team of AWS networking professionals and cloud architects who saw the need for a simpler, more intuitive way to design and visualize AWS network topologies.

This tool is dedicated to all AWS users—from learners to enterprise engineers—who want to get subnetting right the first time.