Prores Data Rate Calculator

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Apple ProRes Data Rate & Storage Calculator

ProRes 422 Proxy ProRes 422 LT ProRes 422 ProRes 422 HQ ProRes 4444 ProRes 4444 XQ
Estimated Data Rate 0 Mbps
File Size (Total) 0 GB
Per Minute 0 GB

How to Use the ProRes Data Rate Calculator

Apple ProRes is the industry-standard codec family for video post-production. Because ProRes uses intra-frame compression, its data rates are much higher than delivery codecs like H.264 or HEVC. This calculator helps editors and DITs estimate storage requirements based on resolution, frame rate, and specific ProRes flavors.

Understanding ProRes Flavors

  • ProRes 422 Proxy: Highly compressed, intended for offline editing workflows.
  • ProRes 422 LT: Roughly 70% the data rate of standard 422, great for archival of news or sports.
  • ProRes 422: The standard balance between quality and file size.
  • ProRes 422 HQ: High-quality version with no perceptible visual loss through multiple generations.
  • ProRes 4444: Supports alpha channels and 12-bit color depth for VFX and mastering.
  • ProRes 4444 XQ: The highest quality version for high-dynamic-range (HDR) mastering.

Calculation Logic and Formula

The data rate for ProRes is proportional to the total number of pixels and the frame rate. The base reference for Apple's official documentation is 1920×1080 at 29.97 fps.

Data Rate = [Base Mbps] * (Width / 1920) * (Height / 1080) * (FPS / 29.97)

Example Scenarios

Format Resolution Data Rate
ProRes 422 HQ 4K (3840×2160) @ 24fps ~705 Mbps
ProRes 422 1080p @ 60fps ~294 Mbps
function calculateProRes() { var baseRate = parseFloat(document.getElementById('proresFlavor').value); var fps = parseFloat(document.getElementById('frameRate').value); var width = parseFloat(document.getElementById('resWidth').value); var height = parseFloat(document.getElementById('resHeight').value); var duration = parseFloat(document.getElementById('durationMin').value); if (isNaN(baseRate) || isNaN(fps) || isNaN(width) || isNaN(height) || isNaN(duration)) { alert("Please enter valid numeric values for all fields."); return; } // Reference base is 1920×1080 @ 29.97 fps var resolutionMultiplier = (width * height) / (1920 * 1080); var fpsMultiplier = fps / 29.97; // Final Data Rate in Mbps var dataRateMbps = baseRate * resolutionMultiplier * fpsMultiplier; // Total File Size in GB // (Mbps * 60 seconds * duration) / 8 bits / 1024 to get GB var totalSeconds = duration * 60; var totalSizeGB = (dataRateMbps * totalSeconds) / 8 / 1024; var perMinuteGB = (dataRateMbps * 60) / 8 / 1024; // Display Results document.getElementById('proresResult').style.display = 'block'; document.getElementById('bitrateOutput').innerText = dataRateMbps.toFixed(2) + " Mbps"; document.getElementById('fileSizeOutput').innerText = totalSizeGB.toFixed(2) + " GB"; document.getElementById('perMinuteOutput').innerText = perMinuteGB.toFixed(2) + " GB"; }

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