ProRes File Size Calculator
Estimate Apple ProRes file size from flavour, resolution and frame rate using the published data-rate targets (422, 422 HQ, 4444, 4444 XQ).
ProRes is constant-quality (VBR), so these are Apple's target data rates scaled by pixel throughput: 1080p25 ProRes 422 HQ ≈ 220 Mbit/s ≈ 1.65 GB/min. 4K roughly quadruples it. Use this to size mezzanine storage and estimate transfer time before a job lands.
Rule / Formula
Estimate Apple ProRes file size from flavour, resolution and frame rate using the published data-rate targets (422, 422 HQ, 4444, 4444 XQ).
About ProRes File Size Calculator
Estimate Apple ProRes file size from flavour, resolution and frame rate using the published data-rate targets (422, 422 HQ, 4444, 4444 XQ). ProRes is constant-quality (VBR), so these are Apple's target data rates scaled by pixel throughput: 1080p25 ProRes 422 HQ ≈ 220 Mbit/s ≈ 1.65 GB/min. 4K roughly quadruples it. Use this to size mezzanine storage and estimate transfer time before a job lands.
How to use ProRes File Size Calculator
- 1Enter your values into the fields in ProRes File Size Calculator.
- 2The result and any pass/fail verdict update instantly as you type — no button to press.
- 3Check the substituted formula and worked example to see exactly how the result was derived.
- 4Copy or note the result for your spec, delivery or planning.
Why use ProRes File Size Calculator?
- ✓Runs entirely in your browser with instant, private results — no data leaves your device.
- ✓Built on a published reference: Apple ProRes White Paper (data-rate targets).
- ✓Shows the governing formula and a worked example, so you can trust and check every result.
- ✓100% free with no sign-up, no watermark and no usage limits.
- ✓Works on any device — desktop, tablet or phone — and keeps working offline once loaded.
Frequently asked questions
What does ProRes File Size Calculator do?+
Estimate Apple ProRes file size from flavour, resolution and frame rate using the published data-rate targets (422, 422 HQ, 4444, 4444 XQ). ProRes is constant-quality (VBR), so these are Apple's target data rates scaled by pixel throughput: 1080p25 ProRes 422 HQ ≈ 220 Mbit/s ≈ 1.65 GB/min.
Is my data private?+
Yes. ProRes File Size Calculator runs entirely in your browser — your inputs are never uploaded, stored or logged.
What standard or source is ProRes File Size Calculator based on?+
It follows Apple ProRes White Paper (data-rate targets). Always confirm against the current official document, as specifications and rates can change.
What formula does it use?+
ProRes File Size Calculator uses: data rate scales with (W×H×fps) relative to the 1080p25 reference rate for each flavour. The tool shows this formula with your own numbers substituted so you can verify the result.
Is ProRes File Size Calculator free to use?+
Yes — it is completely free with no account, no sign-up and no usage limits. There is no watermark and no paywall.
Embed ProRes File Size Calculator on your website
Want ProRes File Size Calculatoron your own site? Paste this snippet into any HTML page — it's free, with no API key or sign-up. The tool loads in an iframe and keeps working exactly as it does here.
<iframe src="https://tooljolt.com/tools/prores-file-size-calculator" width="100%" height="640" style="border:1px solid #e5e7eb;border-radius:12px;max-width:680px" title="ProRes File Size Calculator — ToolJolt" loading="lazy"></iframe>Related Broadcast tools
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