Minutes to GB for H.265 stream @ 4 Mbps Video
60 minutes = about 1.8 GB · fixed video-size estimate · H.265 stream @ 4 Mbps Video
Direct Answer
At H.265 stream @ 4 Mbps, 60 minutes of video needs about 1.8 GB
This result uses the fixed H.265 stream @ 4 Mbps Video bitrate profile, anchored to 0.5 MB/s.
For 15 minutes, the H.265 stream @ 4 Mbps Video bitrate estimate needs about 0.45 GB.
Converter Calculator
1.8 GB
SwitchExplanation
Formula: GB = (minutes x 60 x 0.5) / 1000 (bitrate 4 Mbps). Why: this page fixes the H.265 stream @ 4 Mbps Video video bitrate profile so duration-to-size calculations stay tied to one explicit bitrate assumption.
Duration (minutes): elapsed video time in minutes.
File size (GB): decimal gigabytes of storage, where 1 GB = 1,000,000,000 bytes.
This route is useful when estimating how much storage a video export or stream will need under the fixed H.265 stream @ 4 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 (minutes) | File size (GB) |
|---|---|
| 15 | 0.45 |
| 30 | 0.9 |
| 45 | 1.35 |
| 60 | 1.8 |
| 90 | 2.7 |
| 120 | 3.6 |
| 180 | 5.4 |
Frequently Asked Questions
Which bitrate assumption is fixed on this page?
H.265 stream @ 4 Mbps with nominal video bitrate 4 Mbps.
What is the opposite direction for 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.