ProRes 422 Proxy at 4K UHD (3840×2160): bitrate and storage
ProRes 422 Proxy (Apple ProRes) is a 10-bit 4:2:2 intra-frame codec with a typical compression ratio of 56:1. The table below shows the video data rate and the storage it needs at 4K UHD (3840×2160) for the most common frame rates — video only, audio not included.
| Frame rate | Bitrate | Data rate | Storage / minute | Storage / hour |
|---|---|---|---|---|
| 23.976 fps | 143.2 Mbps | 17.90 MB/s | 1.07 GB | 64.4 GB |
| 24 fps | 143.3 Mbps | 17.92 MB/s | 1.07 GB | 64.5 GB |
| 25 fps | 149.3 Mbps | 18.66 MB/s | 1.12 GB | 67.2 GB |
| 29.970 fps | 179.0 Mbps | 22.37 MB/s | 1.34 GB | 80.5 GB |
| 50 fps | 298.6 Mbps | 37.32 MB/s | 2.24 GB | 134.4 GB |
| 59.940 fps | 358.0 Mbps | 44.74 MB/s | 2.68 GB | 161.1 GB |
Figures use decimal units (1 GB = 1000 MB), the convention used by drive and camera manufacturers. Computed with the same calculation engine as the Workflow Data Calculator — open it to add audio, multiple streams, backup copies, offload time and storage cost to this estimate, or to export a PDF report.
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Certified Adobe & Blackmagic training and postproduction workflow consulting by Jorge Mochón — jmochon.training