Text Reading & Speech Duration Calculator

Estimate reading time, normal speech duration, and fast presentation speed for any text paste.

Overview

Estimates silent reading duration, normal speech presentation time, and fast presentation speed for articles, essays, and public keynote speeches.

Formula & Calculation Method

Reading Time = Word Count / Average Reading Speed (Words Per Minute)

Standard benchmarks: Silent Adult Reading = 200–250 WPM; Slow Speech = 110 WPM; Conversational Presentation = 130–150 WPM; Audiobooks = 150 WPM.

Worked Example: Keynote Speech Transcript of 1,200 Words

Inputs: Word Count = 1,200 Words | Presentation Speech Rate = 130 WPM

  • Silent reading duration = 1,200 / 225 = 5.3 Minutes (5 minutes, 20 seconds)
  • Spoken presentation duration = 1,200 / 130 = 9.2 Minutes (9 minutes, 15 seconds)
  • Slow, deliberate speech delivery (110 WPM) = 10.9 Minutes

Summary: Words = 1,200 | Silent Reading = 5.3 min | Speech Time = 9.2 min | Slides Recommendation = ~9-10 Slides

Common Use Cases

  • Keynote & Public Speaking: Time conference presentations and TEDx-style speeches to avoid exceeding strict speaker time limits.
  • Content Marketing & Blogging: Display accurate reading time indicators on Medium, WordPress, and Substack newsletters.
  • Voiceover Script Timing: Ensure commercial voiceover scripts fit exact 30-second and 60-second broadcast advertising slots.

Frequently Asked Questions

How many words can you speak in a 10-minute presentation?

At a comfortable conversational pace of 130 words per minute, a 10-minute speech should contain approximately 1,200 to 1,300 words.

How fast is normal silent reading compared to speaking?

Silent reading (200-250 WPM) is roughly 60% to 80% faster than speaking aloud (130-150 WPM).

How many words fit in a 30-second radio commercial?

A 30-second voiceover script should be tightly edited to between 65 and 75 words.

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