AWS Subnet Calculator

Plan and visualize your AWS VPC subnets with advanced features

VPC Configuration
Define your VPC CIDR block and region settings
Subnet Configuration
Define your subnet tiers and their properties
Route Table Configuration
Configure custom routes and route table settings

Use a single route table for all public subnets

Use a single route table for all private subnets

Enable Transit Gateway for multi-account VPC access

Add tags to route tables for better organization

Network Components
Configure additional network components for your VPC

Required for public subnets to access the internet

Allows private subnets to access the internet (requires both public and private subnets)

Creates a NAT Gateway in each AZ for high availability

Allocate Elastic IPs for NAT Gateways

Adds a gateway endpoint for Amazon S3

Adds a gateway endpoint for Amazon DynamoDB

Powerful Features for AWS Network Planning

Subnet Planning

Plan your VPC subnets across multiple availability zones with custom CIDR blocks

Visual Representation

Visualize your subnet allocation and network topology with interactive diagrams

Infrastructure as Code

Generate Terraform and CloudFormation code for your subnet configuration

Export Options

Export your subnet plan as JSON, CSV, or infrastructure code

Ready to optimize your AWS network?

Use our AWS Subnet Calculator to plan your infrastructure efficiently

Recent Updates

We've added new features to help you plan your AWS VPC subnets more efficiently. Stay tuned for more updates!