Google provides 15 GB storage distributed as Google Photos, Google Drive, and Gmail equally. If you use the Google account via the office or the school, you can upgrade to 30 GB extra storage space. Additionally, you can add extra storage space for Gmail, as it is payable to use the 15 GB extra limit. Due to lack of technical knowledge, many users don’t know that they can use limited storage space and in the case of storage limit running out, they can’t send/receive emails.