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What is the difference between Data transfer costs and Bandwidth costs in AWS??

When I view my AWS bills, I see there are 2 types of expenses in Data Transfers tab, one of Data Transfer and one on Bandwidth costs. I tried to search a lot on this but could not get a clear demarcation on the difference between the two.

Billing extract

John Rotenstein
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Hardik Kamdar
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  • Can you provide a sample of the bill that mentions Bandwidth? With which service was it associated? – John Rotenstein Oct 16 '15 at 02:45
  • @JohnRotenstein : Please see the bill in the link that shows Data Transfer as well as Bandwidth costs. It is included under Data Transfer tab in the bill [Bandwidth Cost](https://www.dropbox.com/s/0xzfdj6owd9ebft/AWS_Bill_Screenshot.png?dl=0) – Hardik Kamdar Oct 16 '15 at 07:03
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    What does this have to do with computer programming? – dfeuer Oct 16 '15 at 21:15
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    I'm voting to close this question as off-topic because it is not about programming or software development. – Pang Oct 22 '15 at 02:19
  • I'm voting to close this question as off-topic because it should be directed to AWS support. – user207421 Jul 29 '18 at 00:22

1 Answers1

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Yes, that is confusing!

The top Data Transfer part seems to be data transfer between regions. From the Amazon EC2 pricing page:

  • Data Transfer OUT From Amazon EC2 To Another AWS Region = $0.02 per GB

The bottom Bandwidth part seems to be what is normally called Data Transfer (and the line items even use that wording).

  • Data Transfer OUT From Amazon EC2 To Amazon EC2 Using a public or Elastic IP address = $0.01 per GB
  • Data Transfer OUT From Amazon EC2 To Internet = $0.09 per GB

So, I guess "Data Transfer" is between regions, while Bandwidth is out to the Internet.

John Rotenstein
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  • I suppose the data transfer between regions is via the Internet. Then why is there a demarcation between data transfer between regions and data transfer over the Internet? – Hardik Kamdar Oct 18 '15 at 05:40
  • There is a different charge for data transfer between regions and data transfer OUT to the Internet. – John Rotenstein Oct 18 '15 at 05:44
  • Ok @JohnRotenstein : The answer is quite satisfactory. It suffices my doubts. Am accepting your answer on stackoverflow – Hardik Kamdar Oct 19 '15 at 08:49