✳ 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

How it is calculated

seconds = words ÷ words-per-minute × 60

Worked example with the starting values (Script word count: 150; Speaking pace: 150 words/min; Target video length: 60 seconds): estimated spoken length 1m 0s; words that fit in 1m 0s 150; difference 0 words of room left; characters at this length roughly 840.

Key takeaways

  • 1m 0s for 150 words at 150 words a minute; 150 words fit in a minute.
  • The pace is an assumption: read your script aloud once to measure yours.

Measuring your own pace

Spoken length is words divided by words per minute. Read your script aloud once with a timer to find your pace; averages hide a wide range between people and between styles of delivery.

Pauses, retakes and on-screen action add time. Allow a margin below the platform limit instead of aiming at it exactly.

Scenarios

ScenarioEstimated spoken lengthCharacters at this length
150 words at 130 wpm1m 9sroughly 840
150 words at 150 wpm1m 0sroughly 840
150 words at 180 wpm50sroughly 840
600 words at 150 wpm4m 0sroughly 3,360
1,500 words at 150 wpm10m 0sroughly 8,400

Words that fit the platform limits

At 150 words a minute, from the maximum durations in the platform registry:

PlatformMaximum durationWords at 150 wpm
TikTok10 minutes1500
YouTube Shorts3 minutes450
LinkedIn15 minutes2250
Pinterest5 minutes750
X (Twitter)2 minutes350
Threads5 minutes750

Quick answers

What speaking pace should I assume?

The calculator starts at 150 words per minute. Short-form video is often faster and narration slower; set your own pace.

What this assumes