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# Prores File Size Calculator Online

The ProRes File Size Calculator simplifies the estimation of file sizes for ProRes video files. It’s a tool that determines the size of ProRes files in bytes, catering to various bitrates and durations. Understanding its function is essential for video creators, editors, and anyone working with ProRes files.

### Formula of Prores File Size Calculator

The calculation is straightforward:

`File Size (in bytes) = (Video Bitrate / 8) x Duration (in seconds)`

• File Size: Represents the size of the ProRes file in bytes.
• Video Bitrate: Denotes the bitrate of the ProRes video stream in bits per second (bps). Various ProRes flavors like ProRes 422, ProRes 4444, etc., have distinct bitrates.
• Duration: Signifies the length of the video in seconds.

### Example of Prores File Size Calculator

Suppose you’re working with a ProRes 422 video with a bitrate of 100 Mbps (or 100,000,000 bps) and a duration of 180 seconds. Plugging these values into the formula:

`File Size (in bytes) = (100,000,000 / 8) x 180 = 225,000,000 bytes`

This simple calculation yields an estimated file size of 225 MB.

### Most Common FAQs

Q2: Can I use the ProRes Size Calculator for ProRes RAW files?

A2: Yes, the calculator works for all ProRes flavors, including ProRes RAW, provided you input the correct bitrate and duration.

Q: What ProRes bitrate should I choose?

A: The choice of bitrate depends on the project’s requirements. Higher bitrates offer better quality but result in larger file sizes.