✳ FREE CALCULATOR
Script duration calculator
Estimate how long a script will take to say out loud, and work backwards from a platform duration limit to the word count that fits.
- Estimated spoken length
- 1m 0s
- Words that fit in 1m 0s
- 150
- Difference
- 0 words of room left
- Characters at this length
- roughly 840
Using an average of about 5.6 characters per English word including the space.
Calculated as: seconds = words ÷ words-per-minute × 60
What this assumes
- 150 wpm is a common conversational pace; short-form delivery often runs 170–200 and narration slower.
- Ignores pauses, retakes and edits, all of which move the real figure.
- The character estimate is an English-language average, not a measurement of your script.
Koldflux works these numbers out for you when it exports - the calculators exist because our own pipeline needed them first.
Automate this in Koldflux