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Reading & Speaking Duration Planner

Estimate reading and speaking duration using presets or your own pace.

  • Formula & worked example
  • Private in your browser
  • No signup
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Calculator inputs

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How to use this calculator

  1. Enter the known values in the units shown. Results update as you type.
  2. Edit a calculated value to solve backwards, or lock a value to hold it fixed.
  3. Use the worked example to check the method. Reset restores the starting fields.

Private by default

Inputs and results stay in this browser tab. Bookify does not upload or store the values you enter.

Formula and method

A 600-word text takes five minutes to speak at 120 words per minute and two minutes thirty seconds to read at 240 words per minute.

Duration in minutes = word count ÷ words per minute

Worked example

Enter these known values and leave the other values blank.

Speaking pace preset
Other (input below)
Reading pace preset
Other (input below)
Number of words
600
Speaking pace
120 wpm
Reading pace
240 wpm
Speaking time
5:0 min / sec
Reading time
2:30 min / sec

Assumptions and limitations

  • They are planning assumptions. Difficulty, pauses, audience interaction and familiarity with the text change duration. Choose the custom option to enter a measured pace, and leave time for non-spoken material when planning a presentation.
  • Match the units shown and use measured inputs where available. The result follows the stated model and does not account for unentered changes.

Common questions

Do the preset speeds predict my actual delivery?

They are planning assumptions. Difficulty, pauses, audience interaction and familiarity with the text change duration. Choose the custom option to enter a measured pace, and leave time for non-spoken material when planning a presentation.

References

The calculation equations, inverse formulas, units, and input rules were imported from this source. Bookify provides the interface and equation solver.

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