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Browser utility · output first
Video Duration Calculator
Add clip durations and calculate the total timeline length before assembling a video.
Inputs
One or more clip durations. Values stay in this browser.
Result
Total timeline duration in seconds and timecode
Total duration
0:25
How this estimate works
No source media is uploaded by these calculators. A selected file is used only for local metadata inspection.
- All calculations run locally in the browser.
- Bitrate and file size are estimates; variable bitrate and container overhead can change exports.
- Safe zones are conservative review aids, not platform guarantees.
Updated 2026-08-04
Frequently asked questions
Can I include speed changes?
Enter the resulting playback duration for each clip; this calculator does not inspect source media.
Can I use frame values?
The input accepts seconds or mm:ss values for quick planning.
Need to edit the file, not just inspect it?
After the result, continue into a focused local tool or the full Studio when the job needs a timeline.