Get size of an S3 bucket with AWS CLI

By Thomas Taylor | February 28, 2023 | 1 minutes

Using the AWS CLI, S3 bucket sizes can retrieved.

Finding the S3 Bucket Size

Use the s3 list command with the --summarize option.

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aws s3 ls --summarize --human-readable --recursive s3://bucket-name/

Output:

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2023-02-27 00:11:33    5.1 KiB object1name
2023-02-06 00:31:42    5.5 KiB object2name

Total Objects: 2
   Total Size: 10.6 KiB

If the output is too noisy, we can retrieve the last 2 lines of the output:

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aws s3 ls --summarize --human-readable --recursive s3://bucket-name/ | tail -2

Output:

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2
Total Objects: 2
   Total Size: 10.6 KiB