How are charges for Amazon EBS volumes calculated on my bill?
Last updated: 2018-05-03
I have Amazon Elastic Block Store (Amazon EBS) volumes associated with my account. How are they charged on my bill?
Amazon EBS volumes are billed by the gigabyte-month (GB/m). This gigabyte-month is a measure of how many gigabytes of EBS storage are provisioned to your account and how long the EBS storage is provisioned to your account.
In a 31-day month, you are billed for one gigabyte-month in the following scenarios:
- If you have a 31-GB volume that was active for 24 hours.
- If you have a 1-GB volume that was active for 744 hours (the number of hours in 31 days).
You are billed for the total amount of storage provisioned to your account, whether if the storage is used or not. For example, if you provision a 100-GB EBS volume for a month, but only store 1 GB of data on that volume, you are still billed for 100 GB/m of EBS storage.
To minimize the amount you're billed for Amazon EBS storage, do the following: