Text to speech time is the duration it takes to read a piece of text aloud at a natural speaking pace — approximately 150 words per minute for most speakers. A 1,000-word script takes about 6 minutes 40 seconds to say aloud. A 5-minute podcast needs roughly 750 words of scripted content. This guide gives you exact text to speech time estimates for every common word count, plus a free speech time estimator you can use on any text instantly.
What Is Text to Speech Time?
Text to speech time (also called speaking time or read-aloud time) is how long it takes to verbally deliver a written text at a natural, clear speaking pace. It differs from silent reading time because speaking is physically slower than reading — the average adult reads silently at 238 wpm but speaks at only 130–180 wpm.
Text to speech time matters for:
- Podcast scripts — knowing your speaking time before you record prevents episodes running too long or too short
- YouTube video scripts — a 10-minute video needs a script of a specific length to fill the runtime
- Presentations and speeches — conference talks, keynotes, and class presentations have strict time limits
- Audiobook production — estimating studio time and chapter lengths before recording
- Blog reading time badges — some bloggers show both “5 min read” and “8 min listen” for their audio versions
Use our free Reading Time Calculator as a speech time estimator — paste your text and it calculates both silent reading time and speaking time simultaneously.
Text to Speech Time by Word Count: Full Reference Table
These calculations use 150 wpm as the standard speaking pace — the rate used by Google’s Text-to-Speech accessibility guidelines and the benchmark for most audiobook and podcast production:
| Word Count | Speaking Time (150 wpm) | Podcast Speaking (165 wpm) | Fast Speech (180 wpm) |
|---|---|---|---|
| 150 words | 1 min | 55 sec | 50 sec |
| 300 words | 2 min | 1 min 49 sec | 1 min 40 sec |
| 500 words | 3 min 20 sec | 3 min 2 sec | 2 min 46 sec |
| 750 words | 5 min | 4 min 33 sec | 4 min 10 sec |
| 1,000 words | 6 min 40 sec | 6 min 3 sec | 5 min 33 sec |
| 1,500 words | 10 min | 9 min 5 sec | 8 min 20 sec |
| 2,000 words | 13 min 20 sec | 12 min 7 sec | 11 min 7 sec |
| 2,500 words | 16 min 40 sec | 15 min 9 sec | 13 min 53 sec |
| 3,000 words | 20 min | 18 min 10 sec | 16 min 40 sec |
| 4,000 words | 26 min 40 sec | 24 min 14 sec | 22 min 13 sec |
| 5,000 words | 33 min 20 sec | 30 min 18 sec | 27 min 46 sec |
| 7,500 words | 50 min | 45 min 27 sec | 41 min 40 sec |
| 10,000 words | 1 hr 6 min 40 sec | 1 hr 36 sec | 55 min 33 sec |
For your exact text, paste it into our free speech time estimator. It counts your words and calculates speaking time instantly — no signup, no copy limit.
How to Calculate Text to Speech Time
The formula for text to speech time is:
Speaking Time (minutes) = Word Count ÷ Speaking Speed (WPM)
To convert decimals to seconds, multiply the remainder by 60. Examples using 150 wpm:
- 1,000 ÷ 150 = 6.67 minutes = 6 min 40 sec
- 1,500 ÷ 150 = 10.0 minutes = 10 min exactly
- 2,200 ÷ 150 = 14.67 minutes = 14 min 40 sec
- 750 ÷ 150 = 5.0 minutes = 5 min exactly
Text to Speech Time by Content Format
Different content formats have standard durations. Use these benchmarks to plan your script length:
| Content Format | Target Duration | Words Needed (150 wpm) | Words Needed (165 wpm) |
|---|---|---|---|
| Short-form YouTube video | 3–5 min | 450–750 words | 495–825 words |
| Standard YouTube video | 8–12 min | 1,200–1,800 words | 1,320–1,980 words |
| Long-form YouTube video | 15–20 min | 2,250–3,000 words | 2,475–3,300 words |
| Short podcast episode | 10–15 min | 1,500–2,250 words | 1,650–2,475 words |
| Standard podcast episode | 30–45 min | 4,500–6,750 words | 4,950–7,425 words |
| 5-minute conference talk | 5 min | 750 words | 825 words |
| 10-minute conference talk | 10 min | 1,500 words | 1,650 words |
| 20-minute keynote | 20 min | 3,000 words | 3,300 words |
| TED Talk (standard) | 18 min | 2,700 words | 2,970 words |
Speaking Speed vs Reading Speed: What Is the Difference?
Text to speech time is always longer than silent reading time for the same content. Here is a direct comparison:
| Mode | Average Speed | 1,000 Words | 2,000 Words | 5,000 Words |
|---|---|---|---|---|
| Silent reading (slow) | 150 wpm | 6 min 40 sec | 13 min 20 sec | 33 min 20 sec |
| Silent reading (average) | 238 wpm | 4 min 12 sec | 8 min 24 sec | 21 min |
| Silent reading (fast) | 400 wpm | 2 min 30 sec | 5 min | 12 min 30 sec |
| Speaking aloud (slow) | 120 wpm | 8 min 20 sec | 16 min 40 sec | 41 min 40 sec |
| Speaking aloud (average) | 150 wpm | 6 min 40 sec | 13 min 20 sec | 33 min 20 sec |
| Speaking aloud (fast) | 180 wpm | 5 min 33 sec | 11 min 6 sec | 27 min 46 sec |
The average adult reads silently 58% faster than they speak. This is why a “5-minute read” blog post (1,190 words at 238 wpm) takes about 8 minutes to read aloud as an audio version.
How to Use a Speech Time Estimator for Your Content
There are two ways to estimate text to speech time accurately:
Method 1: Use our free Reading Time Calculator
Go to our free Reading Time Calculator. Paste your full script or text, or enter your word count. The tool outputs both silent reading time and speaking time — no signup, no character limit. Select the speaking speed preset that matches your delivery style (slow for formal speeches, average for podcasts, fast for conversational YouTube).
Method 2: Use the formula manually
Count your words (or use a word processor’s word count), divide by 150 for average speech, and multiply the decimal remainder by 60 to get seconds. This works for quick estimates but the calculator is faster and also gives you a copyable reading time badge for your blog post.
Frequently Asked Questions
How long does it take to say 1,000 words?
At average speaking speed (150 wpm), 1,000 words takes 6 minutes and 40 seconds to say aloud. At a faster conversational pace (180 wpm), 1,000 words takes 5 minutes 33 seconds. For a formal presentation or slow deliberate speech (120 wpm), 1,000 words takes 8 minutes 20 seconds.
How many words do I need for a 5-minute speech?
At 150 wpm, a 5-minute speech needs 750 words. At 165 wpm (conversational podcast pace), you need 825 words. At 120 wpm (slow, deliberate delivery), you need 600 words. Always rehearse with a timer — nervousness and pauses can add 10–20% to your delivery time.
How many words do I need for a 10-minute YouTube video?
For a 10-minute YouTube video script at average speaking pace (150 wpm), you need approximately 1,500 words. At a faster YouTube-style pace (165–180 wpm), you need 1,650–1,800 words. Add 10–15% extra for pauses, on-screen demonstrations, and natural speech patterns.
What is the average text to speech time per word?
At 150 wpm, each word takes 0.4 seconds to speak. At 180 wpm, each word takes 0.33 seconds. So a 100-word paragraph takes about 40 seconds at average speaking pace. Use this as a quick mental estimate: every 100 words ≈ 40 seconds of speech at standard pace.
Is text to speech time the same as reading time?
No. Text to speech time (speaking aloud) is always longer than silent reading time. The Brysbaert 2019 reading speed study confirms adults read silently at 238 wpm on average. The average adult reads silently at 238 wpm but speaks at 150 wpm — making speaking about 58% slower than reading. A “4-minute read” blog post takes approximately 6 minutes 40 seconds to read aloud. Our Reading Time Calculator shows both times simultaneously so you can use whichever is relevant.
How long does it take to read 2,000 words aloud?
Reading 2,000 words aloud at average speaking pace (150 wpm) takes 13 minutes and 20 seconds. At a faster podcast pace (165 wpm), it takes about 12 minutes 7 seconds. This means a 2,000-word blog post converted to audio becomes a 13-minute episode — roughly the length of a short podcast segment.