You may have used an out of date calculator or it's for specific cases. AWS inbound traffic has been free since 2011 https://aws.amazon.com/blogs/aws/aws-lower

You may have used an out of date calculator or it's for specific cases. AWS inbound traffic has been free since 2011 https://aws.amazon.com/blogs/aws/aws-lowers-its-pricing-again-free-inbound-data-transfer-and-lower-outbound-data-transfer-for-all-ser/ https://aws.amazon.com/blogs/aws/aws-lowers-its-pricing-agai...