From the AWS CLI you can easily see how big a AWS S3 Bucket, firstly login to the AWS CLI and then you can run the command:
aws s3 ls --summarize --human-readable --recursive s3://my-big-bucket/ | tail -2
Total Objects: 176
Total Size: 13.2 TiB
The ramblings of a computer geek
From the AWS CLI you can easily see how big a AWS S3 Bucket, firstly login to the AWS CLI and then you can run the command:
aws s3 ls --summarize --human-readable --recursive s3://my-big-bucket/ | tail -2
Total Objects: 176
Total Size: 13.2 TiB