YouTube Shorts Voiceover: Length, Pace and Hook Rules
Updated September 3, 2026
TL;DR: a Short reads at 2.5–3 words a second: 45 seconds is about 120 words, 60 seconds about 150. Hook inside two seconds, one idea per Short, end on a loop or a question. Generate at the pace of the visuals, not the other way round — and cut Shorts out of your long-form Studio projects rather than writing them from scratch.
Length and pace
| Short length | Words at natural pace | Characters ≈ credits (standard) |
|---|---|---|
| 15 s | 35–40 | ≈220 |
| 30 s | 70–80 | ≈450 |
| 45 s | 110–125 | ≈700 |
| 60 s | 145–160 | ≈900 |
Faster than three words a second and the voice starts to sound rushed; slower than two and viewers leave. If a read comes back long, cut adjectives and any sentence that repeats the visual.
Hook formulas that read well aloud
- The mid-action open: "So this is the moment the plan fell apart."
- The number: "Three settings are killing your battery."
- The contradiction: "Everyone says do X. Here's why it's wrong."
- The promise with a deadline: "By the end of this Short you'll know which one to buy."
Directing the read
Use a conversational or energetic voice — Ivy for pace, Aria for talk, Carl for a quick explainer — and on Ultra voices open with [excited] and drop to [calm] for the payoff. Keep the director's note short: "quick, bright, friendly."
Cutting Shorts from long-form
If you already produce 10-minute videos in a Studio project, each paragraph is a candidate Short: regenerate it on its own with a punchier tag, export, and pair it with the matching visual. The narrator, pronunciation rules and tone stay consistent with the main channel.
Captions
Shorts are watched muted more than long-form. Paste the script as captions or export SRT from Studio; both match the read exactly, unlike auto-captions.
Frequently asked questions
How many words in a 60-second Short?
About 145–160 at a natural pace; fewer if the visuals need breathing room.
Should Shorts use a different voice from my long videos?
Same narrator, brighter direction. Consistency across formats builds recognition; use tags and the director's note for energy.
Are Shorts with AI voiceover monetisable?
Under the same rules as long-form: original content, not repetitive. Check the current YouTube policy.
How much does a Short cost to generate?
Roughly 900 credits for a 60-second read on standard voices — sign-up credits cover three.