Warning❗️Though AWS Cloud is pay as you go! If the number of objects in your bucket is too many, you could incur a significant cost, so be mindful that per 1,000 S3 LIST requests you will incur a cost of $0.005. Each LIST request gets around 1,000 object details.
Get Total Size and Object count of AWS Bucket using AWS Console
- Login to your AWS Web Console.
- Navigate to S3 Console: https://s3.console.aws.amazon.com
- Now click on the bucket name that you want to know the size.
- Now select all objects by checking the top most checkbox,
- Under Actions select: "Calculate total Size"

Note that the total size information will no longer be available after you navigate away from this page - so you can take a note of the total object count and its size.
Get Total Size and Object count of AWS Bucket using AWS CLI Command
- Open your terminal/command prompt (make sure you have set the AWS keys using aws config)
- Now make use of the S3 ls command with the below options,
# aws s3 ls s3://c2c-bucket-1 --recursive --human-readable --summarize 2022-08-17 00:17:46 0 Bytes myfiles/a.txt 2022-08-17 00:17:46 0 Bytes myfiles/b.txt 2022-08-17 00:17:46 13 Bytes test.txt 2022-08-17 00:17:46 0 Bytes test2.txt Total Objects: 4 Total Size: 13 Bytes
- Make a note of Total Size displayed in Bytes/KibMib/Gib/Tib/iPb
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