Seconds to MB for ProRes Proxy @ 45 Mbps Video
45 seconds = about 253.13 MB · fixed video-size estimate · ProRes Proxy @ 45 Mbps Video
Direct Answer
At ProRes Proxy @ 45 Mbps, 45 seconds of video needs about 253.13 MB
This result uses the fixed ProRes Proxy @ 45 Mbps Video bitrate profile, anchored to 5.625 MB/s.
For 5 seconds, the ProRes Proxy @ 45 Mbps Video bitrate estimate needs about 28.13 MB.
Converter Calculator
253.13 MB
SwitchExplanation
Formula: MB = seconds x 5.625 (bitrate 45 Mbps). Why: this page fixes the ProRes Proxy @ 45 Mbps Video video bitrate profile so duration-to-size calculations stay tied to one explicit bitrate assumption.
Duration (seconds): elapsed video time in seconds.
File size (MB): decimal megabytes of storage, where 1 MB = 1,000,000 bytes.
This route is useful when estimating how much storage a video export or stream will need under the fixed ProRes Proxy @ 45 Mbps Video bitrate profile.
This conversion is profile-based rather than universal: encoded video size depends on bitrate and duration, so mirror pages should keep the same bitrate profile to remain comparable.
Common Conversion Values
| Duration (seconds) | File size (MB) |
|---|---|
| 5 | 28.13 |
| 10 | 56.25 |
| 15 | 84.38 |
| 30 | 168.75 |
| 45 | 253.13 |
| 60 | 337.5 |
| 90 | 506.25 |
| 120 | 675 |
| 300 | 1,687.5 |
Frequently Asked Questions
Which bitrate assumption is fixed on this page?
ProRes Proxy @ 45 Mbps with nominal video bitrate 45 Mbps.
How do I reverse Duration to File size?
Use the mirror File size to Duration route; it applies the inverse relationship for the opposite direction with the same assumptions.
Can this be used for upload-time and storage planning?
Yes. It provides baseline estimates useful for archive sizing, CDN planning, and upload budget checks.