Voiceover Script Timer
Paste your script to see how long it takes to read aloud, whether it fits a 15, 30, 45 or 60-second slot, and how many credits it would cost on each voice engine. The estimate runs in your browser: no account, nothing to install.
| Voice engine | How it bills | This script |
|---|---|---|
| Leap Turbo | 0.5 credit per character | 0 |
| Leap Expressive | 1 credit per character | 0 |
| Leap Pro | 1 credit per character | 0 |
| Leap Ultra | 1.5 credits per UTF-8 byte | 0 |
The length is an estimate from the word count. The real length depends on the voice and its pauses; the generated audio shows the exact duration.
Hear it in a real voiceThe samples are real LeapFun output. Generating your own script takes a free sign-up: 3,000 credits, no credit card. Free-tier audio is for personal and evaluation use; commercial rights start at Starter ($6 / month).
How it works
- Paste your scriptPaste or type up to 1,500 characters. The word count, the estimated length and the credits update as you type.
- Pick a speaking speedChoose slow, normal or fast. The timer shows whether the script fits a 15, 30, 45 or 60-second slot and how many words to cut or add.
- Hear the real lengthPick a voice and send the script to the editor. After a free sign-up the generated audio shows the exact duration.
How many words fit in a voiceover
| Length | Slow (130 wpm) | Normal (150 wpm) | Fast (170 wpm) |
|---|---|---|---|
| 15 seconds | about 33 words | about 38 words | about 43 words |
| 30 seconds | about 65 words | about 75 words | about 85 words |
| 45 seconds | about 98 words | about 113 words | about 128 words |
| 60 seconds | about 130 words | about 150 words | about 170 words |
| 2 minutes | about 260 words | about 300 words | about 340 words |
| 5 minutes | about 650 words | about 750 words | about 850 words |
Ads and short-form video usually sit at the fast end; tutorials, eLearning and audiobooks at the slow end. For platform-specific advice see the guides to video ad voiceovers and YouTube narration.
Why the real length differs from the estimate
- Every voice has its own pace
A warm narrator and an upbeat ad voice read the same sentence at different speeds. The estimate uses one average for all of them.
- Punctuation becomes pauses
Commas, full stops, line breaks and ellipses all add silence that a word count cannot see. A script with many short sentences runs longer than its word count suggests.
- Numbers and abbreviations expand
"$1,299" is one word on the page and five when spoken. Prices, dates, URLs and acronyms are the usual reason a spot runs over.
Frequently asked questions
How many words is a 30-second voiceover?
About 75 words at a normal pace of 150 words per minute. A slow, deliberate read fits about 65 words; a fast, energetic read fits about 85.
How accurate is the estimate?
It is a word-count estimate, so treat it as a planning number. The real length depends on the voice, on punctuation and pauses, and on how numbers and abbreviations are read. The only exact figure is the duration of the generated audio.
Does speaking speed change the cost?
No. Credits are billed on the text, not on the duration: per character on Leap Turbo, Leap Expressive and Leap Pro, and per UTF-8 byte on Leap Ultra. A faster read of the same script costs the same.
Can I time a script in Chinese?
Yes. Chinese, Japanese and Korean characters are counted one by one, at about 240 characters per minute at a normal pace. Mixed scripts add the two estimates together.
How do I hear the real length?
Pick a voice under the script and click the button. The script and the voice open in the LeapFun editor; after a free sign-up (3,000 credits, no credit card) you generate the audio and see its exact duration.
Ready to hear your script?
Sign up in one click, get 3,000 credits, and generate your first take in seconds.
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