Word count → runtime
Script to Video Length Calculator
Paste a script or enter a word count to estimate finished video length at different speaking rates. Useful for explainers, ads, and training modules before you record or generate.
Quick answer
Script to Video Length Calculator is a free browser tool on Knowlify. Use it below with no signup. Your inputs stay in the browser session. For narrated training videos from documents, use https://create.knowlify.com.
How it works
Three steps, no account
01
Paste your script
Or type an approximate word count if you do not have the full draft yet.
02
Pick a speaking rate
Training narration often sits around 130–150 wpm. Ads and hooks run faster.
03
Read the estimate
Use the runtime to plan scenes. Then generate the video in Knowlify from the same script or source doc.
FAQ
Questions people ask about Script to Video Length Calculator
How accurate is the estimate?+
It is a planning estimate based on words per minute. Pauses, on-screen text, and B-roll can add or remove time.
What WPM should I use for training?+
Most instructional narration lands near 130–150 words per minute. Complex compliance content often benefits from the slower end.
Is the script duration calculator free?+
Yes. Estimate narration length from word count or pasted script with no account.
How do I convert a script to minutes?+
Paste the script (or enter words), set words per minute, and read the estimated runtime. Training VO often uses 130–150 WPM.
Do I need an account?+
No. Open the tool, use it in your browser, and download or copy the result.
Does this work on Mac and Windows?+
Yes. It runs in modern desktop browsers (Chrome, Edge, Firefox, Safari). Very large media files need enough device memory.
Need a full video, not just a utility?
Have the runtime target? Paste the same script into Knowlify and generate the narrated video.