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THE FEUTEX TOOLKIT

Teleprompter Scroll Speed

Calculate scroll speed from readable lines, speaking rate and words per line.

Video workspace● Runs in your browser
01 Your input
02 Your result
View or copy raw result data
FormulaPixels second = words_min/words_line*line_height/60; Visible seconds = visible_lines*words_line/words_min*60

Made for real tasks

  • Calculate scroll speed from readable lines, speaking rate and words per line.
  • Compare two scenarios by changing the inputs and rerunning the tool.
Explore step-by-step workflows →

Worked example

Inputs

Words min
140 words/min
Words line
7 words/line
Line height
60 px/line
Visible lines
5 lines

Expected results

Pixels second
20 px/s
Visible seconds
15 s

Load the example in the workspace to reproduce these results. Display rounding does not change the underlying calculation.

How to use this tool

  1. Enter words min, words line, line height, visible lines.
  2. Use consistent units shown beside each input. Run the calculation and review the assumptions below.

Try this example

{
  "words_min": 140,
  "words_line": 7,
  "line_height": 60,
  "visible_lines": 5
}

Accuracy and scope

Words per line and line height are constant; spoken rate excludes pauses. Device scaling, wrapping, blank lines and punctuation pauses can change actual required scroll speed.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.