Video and Image File Size Guidelines and Quick Reference Table for Email Attachments and Upload Limits (MB/GB)

How much is 1GB? How many MB is a 1-minute video? We summarized the general size guidelines for data files, email attachment limits for Gmail, etc., and upload limits for various SNS and cloud storage.

Common Data Size Guidelines for Files

For those who don't have a good grasp of data size units (KB, MB, GB), we have summarized the general data capacity guidelines for common files. (*This will vary greatly depending on the settings and compression ratio)

Text documents (Word/Excel): 10KB to 2MB (when there are few images)
Smartphone photos (JPEG): 2MB to 5MB / 1 photo
High-quality DSLR photos (RAW): 20MB to 50MB / 1 photo
Music files (MP3, 5 minutes): 4MB to 6MB
Full HD video (1080p, 1 minute): Approx. 100MB to 150MB
4K video (1 minute): Approx. 350MB to 500MB

File Sending and Upload Limits for Various Services

When sending files for business or daily life, be careful not to get caught by the following limits. If it exceeds the limit, you will need to compress it with ZIP, etc., or use link sharing from a file transfer service (cloud storage).

Gmail / Outlook Attachments: Up to 25MB
LINE (Images/Videos): The capacity limit is not specified, but videos longer than 5 minutes will be automatically cut and compressed.
Slack Workspace: Up to 1GB per file
Discord (Free Plan): Up to 25MB

Frequently Asked Questions

Q. Please tell me the order and relationship of KB, MB, GB, and TB.

A. 1,024KB = 1MB, 1,024MB = 1GB, and 1,024GB = 1TB. (It may also be calculated in units of 1,000 in storage product notations, etc.)

Q. How can I reduce the file size of a video?

A. You can significantly reduce the size by lowering the resolution (e.g., from 1080p to 720p), dropping the frame rate (e.g., from 60fps to 30fps), or exporting with a highly efficient compression codec such as H.264 or H.265.