Writing voice-over scripts for short video ads

How many words fit

• Speech runs at roughly 2 to 3 words a second, or about 15 to 17 characters.
• 15 seconds: about 30 to 40 words.
• 30 seconds: about 65 to 75 words.
• 60 seconds: about 130 to 150 words.
• SupaSwirl shows the seconds as you type and stops the script at the video's length. Our free script timer does the same before you start.

A simple structure

• Hook (first 2–3 s): a question or bold line.
• Problem or desire: one sentence.
• Product: what it is and the one thing that matters most.
• Proof: a detail people can see.
• Call to action: what to do now.

Example: 15 seconds

Script

Tired of bitter coffee? Meet our cold brew: steeped for eighteen hours, smooth and bold. Just pour over ice. Order today and get free delivery on your first box.

Write for the ear

• Use short sentences with one idea each.
• Say numbers the way people say them: “nine ninety”, not “$9.90”.
• Read it aloud once. If you run out of breath, cut words.
• Match the voice to the brand: calm for premium, upbeat for offers.