How much does an hour of ProRes 422 HQ in 4K take?

ProRes 422 HQ in UHD 4K at 24 fps is around 320 GB per hour (about 880 Mbps at 29.97 fps). Enter your exact values to see it, since it scales with resolution and fps.

How is RAW storage calculated?

For sensor RAW formats (REDCODE, BRAW, ARRIRAW) it starts from the Bayer size (width × height × bit depth), divides by the compression ratio, then multiplies by fps and duration.

How do I calculate RAID usable capacity?

Usable capacity depends on the RAID level and disk count: RAID 0 = all disks; RAID 1/10 = half; RAID 5 = (n−1) disks; RAID 6 = (n−2) disks. This calculator multiplies that by your disk size and shows raw vs usable, the overhead percentage and how many disks can fail.

What is the difference between RAID 5 and RAID 6?

RAID 5 uses single parity and survives one disk failure, losing one disk of capacity. RAID 6 uses dual parity and survives two simultaneous failures, losing two disks. RAID 6 is safer for large arrays where a rebuild takes a long time.

How much capacity does RAID 5 lose?

RAID 5 dedicates the equivalent of one disk to parity, so usable capacity is (n−1)/n of the raw total. Four 8 TB disks give about 24 TB usable out of 32 TB raw — a 25% overhead. The more disks, the smaller the percentage lost.

RAID Calculator & Video Storage Calculator (ProRes, R3D)

Parameters

Camera preset (optional)

Auto-fills format, compression, resolution and fps with the camera's typical native mode.

Format

Resolution

Frame rate (fps)

Duration (hours)

Total footage recorded or to archive.

How to plan your storage

Rule of thumb: estimate the raw footage, add room for proxies, renders and backups (multiply ×2–3 if you follow the 3-2-1 rule), and always keep 20% headroom on each drive.

Why GB in base 1000 and not 1024?

Drive makers sell in base 1000 (1 TB = 1,000 GB). The OS sometimes shows base 1024 (GiB/TiB), which is why a “2 TB” drive appears as ~1.82 TiB. We use base 1000 here to match the advertised capacity.

Do RAW formats always compress the same?

No. REDCODE, BRAW and X-OCN use lossy compression that varies with content (more detail and motion = larger files). The ratio you pick is the average target; the result is an estimate.

How does the RAID calculator work?

Pick a RAID level (0, 1, 5, 6 or 10), the number of disks and the disk size. It shows raw vs usable capacity, the storage overhead and how many disks can fail without losing data — so you can size an array for your footage and backups.

RAID 5 vs RAID 6 — which should I use?

RAID 5 (single parity) survives one disk failure; RAID 6 (dual parity) survives two. For arrays of six or more large disks, RAID 6 is the safer choice because rebuilds take long enough that a second failure becomes a real risk.

RAID & video storage calculator

Parameters

RAID calculator

Pros

Cons

How to plan your storage