How to use this tool
Enter the requested values above. The result updates immediately so you can compare scenarios without creating an account or uploading data.
How the calculation works
File size in GB = bitrate in Mbps × seconds ÷ 8 ÷ 1,000
Example
A 20 Mbps recording lasting 10 minutes is roughly 1.5 GB before audio and container overhead.
Why this result matters
File-size planning helps creators reserve storage and choose export settings for trailers, gameplay captures, and social clips.
Tips for a more useful estimate
- Add audio bitrate for a closer estimate.
- Variable bitrate files may differ.
- Platform re-encoding can change the uploaded size.
Frequently asked questions
Why divide by eight?
Network bitrate uses bits while file size uses bytes; eight bits equal one byte.
Does resolution determine file size?
Bitrate and duration determine this estimate, though resolution influences the bitrate you may choose.
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