Results are approximate and may vary based on actual encoding settings and content complexity.
The Video File Size Calculator helps you calculate how much storage space your video file will use. Whether you're editing, uploading, or sharing videos, knowing the estimated file size helps you plan better and avoid surprises.
Why Calculate Video File Size?
Large video files can eat up storage space quickly and may take a long time to upload. Estimating the size in advance helps you:
- Prepare the correct storage device
- Choose the right compression settings
- Stay within upload limits on websites
- Plan faster transfers or backups
How the Video File Size Is Calculated
The formula for calculating video file size is:
File Size (MB) = (Bitrate in kbps × Duration in seconds) ÷ 8 ÷ 1024
This formula converts bitrate from kilobits to bytes, then to megabytes.
What You Need to Input
- Video Bitrate (kbps): Includes both video and audio bitrate
- Duration: Total length of the video (in minutes or seconds)
Common Bitrates Based on Quality
Here are some common video bitrate values to use as reference:
- 360p – 1000 kbps
- 720p – 2500 kbps
- 1080p – 5000 kbps
- 4K – 20000 kbps or more
Example Calculation
For a 10-minute 1080p video at 5000 kbps bitrate:
File Size = (5000 × 600) ÷ 8 ÷ 1024 ≈ 366 MB
Conclusion
The Video File Size Calculator is a simple and useful tool for video editors, YouTubers, or anyone who works with video files. It saves time and helps manage storage. Try it now and plan your next video project smartly!