Joniel GalloCloud & AI Engineering

NAT Gateway vs VPC Endpoints Calculator

How much is your NAT Gateway really costing you, and how much would VPC endpoints save? Enter your traffic. The calculator compares three setups: NAT only, NAT plus free gateway endpoints for S3 and DynamoDB, and NAT plus gateway and interface endpoints.

Your NAT Gateways

NAT GatewaysUsually one per Availability Zone

Hours per month

Data processed by NAT (GB/month)From Cost Explorer: usage type NatGateway-Bytes

Where the traffic goes

% to S3 and DynamoDBEligible for free gateway endpoints

% to other AWS servicesFor example ECR, CloudWatch Logs, STS

Interface endpoints you would createOne per service

Prices (us-east-1, editable)

NAT Gateway per hour (US$)

NAT data processed per GB (US$)

Interface endpoint per hour per AZ (US$)

Interface endpoint per GB (US$)

Estimated monthly cost

Setup	Per month
NAT only (today)
+ Gateway endpoints
+ Gateway and interface endpoints

Estimates use public list prices at the time of writing and ignore data transfer charges that apply in every setup. Check the VPC pricing page for your Region. Why this happens: Why is my NAT Gateway so expensive?