DNxHD / DNxHR File Size Calculator
Estimate Avid DNxHD/DNxHR file size from the bitrate class and duration — the Avid-native mezzanine equivalent of ProRes.
DNxHD/HR are Avid's intra-frame mezzanine codecs with fixed bitrate classes (36, 120, 145, 220 Mbit/s at 1080). Unlike ProRes's quality-based VBR, DNxHD classes are near-constant bitrate, so file size is a clean bitrate×time product — handy for predicting Avid MediaFiles storage exactly.
Rule / Formula
Estimate Avid DNxHD/DNxHR file size from the bitrate class and duration — the Avid-native mezzanine equivalent of ProRes.
About DNxHD / DNxHR File Size Calculator
Estimate Avid DNxHD/DNxHR file size from the bitrate class and duration — the Avid-native mezzanine equivalent of ProRes. DNxHD/HR are Avid's intra-frame mezzanine codecs with fixed bitrate classes (36, 120, 145, 220 Mbit/s at 1080). Unlike ProRes's quality-based VBR, DNxHD classes are near-constant bitrate, so file size is a clean bitrate×time product — handy for predicting Avid MediaFiles storage exactly.
How to use DNxHD / DNxHR File Size Calculator
- 1Enter your values into the fields in DNxHD / DNxHR 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 DNxHD / DNxHR File Size Calculator?
- ✓Runs entirely in your browser with instant, private results — no data leaves your device.
- ✓Built on a published reference: Avid DNxHD/DNxHR codec documentation.
- ✓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 DNxHD / DNxHR File Size Calculator do?+
Estimate Avid DNxHD/DNxHR file size from the bitrate class and duration — the Avid-native mezzanine equivalent of ProRes. DNxHD/HR are Avid's intra-frame mezzanine codecs with fixed bitrate classes (36, 120, 145, 220 Mbit/s at 1080).
Is my data private?+
Yes. DNxHD / DNxHR File Size Calculator runs entirely in your browser — your inputs are never uploaded, stored or logged.
What standard or source is DNxHD / DNxHR File Size Calculator based on?+
It follows Avid DNxHD/DNxHR codec documentation. Always confirm against the current official document, as specifications and rates can change.
What formula does it use?+
DNxHD / DNxHR File Size Calculator uses: size (GB) = data rate (Mbit/s) × 10⁶ ÷ 8 × seconds ÷ 10⁹. The tool shows this formula with your own numbers substituted so you can verify the result.
Is DNxHD / DNxHR 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 DNxHD / DNxHR File Size Calculator on your website
Want DNxHD / DNxHR 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/dnxhd-dnxhr-file-size-calculator" width="100%" height="640" style="border:1px solid #e5e7eb;border-radius:12px;max-width:680px" title="DNxHD / DNxHR File Size Calculator — ToolJolt" loading="lazy"></iframe>Related Broadcast tools
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