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EDL Frame-Rate Mismatch Calculator

Spot the timing error when an EDL's timecodes are interpreted at the wrong frame rate — the silent cause of drifting conforms.

Position error at this point (seconds)

If an EDL authored at 24 fps is read as 25, every event slips progressively — at one hour in, the error is ~144 seconds. The cut still 'works' near the head, which is why these mismatches hide until late reels drift wildly out of sync. Always confirm the EDL's frame rate before conforming.

Rule / Formula

position error = position × (intendedRate / actualRate − 1)
References: CMX 3600 EDL format; conform best practice

Spot the timing error when an EDL's timecodes are interpreted at the wrong frame rate — the silent cause of drifting conforms.

About EDL Frame-Rate Mismatch Calculator

Spot the timing error when an EDL's timecodes are interpreted at the wrong frame rate — the silent cause of drifting conforms. If an EDL authored at 24 fps is read as 25, every event slips progressively — at one hour in, the error is ~144 seconds. The cut still 'works' near the head, which is why these mismatches hide until late reels drift wildly out of sync. Always confirm the EDL's frame rate before conforming.

How to use EDL Frame-Rate Mismatch Calculator

  1. 1Enter your values into the fields in EDL Frame-Rate Mismatch Calculator.
  2. 2The result and any pass/fail verdict update instantly as you type — no button to press.
  3. 3Check the substituted formula and worked example to see exactly how the result was derived.
  4. 4Copy or note the result for your spec, delivery or planning.

Why use EDL Frame-Rate Mismatch Calculator?

  • Runs entirely in your browser with instant, private results — no data leaves your device.
  • Built on a published reference: CMX 3600 EDL format; conform best practice.
  • 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 EDL Frame-Rate Mismatch Calculator do?+

Spot the timing error when an EDL's timecodes are interpreted at the wrong frame rate — the silent cause of drifting conforms. If an EDL authored at 24 fps is read as 25, every event slips progressively — at one hour in, the error is ~144 seconds.

Is my data private?+

Yes. EDL Frame-Rate Mismatch Calculator runs entirely in your browser — your inputs are never uploaded, stored or logged.

What standard or source is EDL Frame-Rate Mismatch Calculator based on?+

It follows CMX 3600 EDL format; conform best practice. Always confirm against the current official document, as specifications and rates can change.

What formula does it use?+

EDL Frame-Rate Mismatch Calculator uses: position error = position × (intendedRate / actualRate − 1). The tool shows this formula with your own numbers substituted so you can verify the result.

Is EDL Frame-Rate Mismatch 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 EDL Frame-Rate Mismatch Calculator on your website

Want EDL Frame-Rate Mismatch 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.

Embed code
<iframe src="https://tooljolt.com/tools/edl-framerate-mismatch-calculator" width="100%" height="640" style="border:1px solid #e5e7eb;border-radius:12px;max-width:680px" title="EDL Frame-Rate Mismatch Calculator — ToolJolt" loading="lazy"></iframe>

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