Data & backup planner
How much space does ARRIRAW take?
ARRIRAW is a RAW format, so its size follows the sensor mode: 1.625 bytes per pixel per frame. On the ARRI Alexa 35 (4608 × 3164) that is 2.13 TB per hour at 25 fps.
- Footage per day
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- Footage, whole shoot
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- Incl. all copies
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- Drives needed
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- Offload per day
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- Left after wrap
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- Per recording hour
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- Per day
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- Whole shoot
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- Data rate
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- 4 GB file holds
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Picture = the plan on the Footage tab.
- One file
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- All versions
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- Upload at full speed
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- Upload at 80 %
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Same runtime in every format. Platform figures are their recommendations, not limits.
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ARRIRAW per hour, by camera
Values per camera in its widest recording mode. A 16:9 or 2.39 crop uses fewer pixels and shrinks the files in proportion — a 4K 16:9 mode on a 4.6K open-gate sensor saves roughly a quarter.
| Camera | Pixels | 24 fps | 25 fps | 30 fps | 50 fps | 60 fps |
|---|---|---|---|---|---|---|
| ARRI Alexa 35 | 4608 × 3164 | 2.05 TB | 2.13 TB | 2.56 TB | 4.26 TB | 5.12 TB |
| ARRI Alexa Mini LF | 4448 × 3096 | 1.93 TB | 2.01 TB | 2.42 TB | 4.03 TB | 4.83 TB |
| ARRI Alexa Mini | 3424 × 2202 | 1.06 TB | 1.10 TB | 1.32 TB | 2.21 TB | 2.65 TB |
How long a card lasts
Minutes of recording per card (ARRI Alexa 35, 25 fps). The last column is the time a DIT needs to copy that card once to an NVMe SSD at a sustained 850 MB/s, plus a verification pass.
| Card | Recording time | Offload + verify |
|---|---|---|
| 256 GB | 7 min | 10 min |
| 512 GB | 14 min | 20 min |
| 1 TB | 28 min | 39 min |
| 2 TB | 56 min | 1 h 18 min |
Cameras that record ARRIRAW
In our camera list: ARRI Alexa 35, ARRI Alexa Mini LF, ARRI Alexa Mini. The tool above has each of them as a preset, with the codecs and frame rates the body actually offers.
Frequently asked
How much storage does one hour of ARRIRAW need?
It depends on the camera’s recording mode. In the ARRI Alexa 35 at full resolution and 25 fps: 2.13 TB. The table above lists every camera.
Why does my card show less space than its label?
Cards are labelled in decimal units (1 TB = 1,000,000,000,000 bytes); some operating systems count in binary units and show about 931 GB for a 1 TB card. The numbers on this page are decimal, like the label.