MADE WITH LONG
July 11, 2026
How Long Should a Promo Video Be? Lengths by Channel (2026)
For paid social, 15 to 30 seconds. TikTok and Reels ads work best around 9 to 21 seconds. Landing-page promos can run 30 to 60. Here is the length that works per placement, and why the first three seconds decide everything.
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A promo video should run 15 to 30 seconds when it is a paid social ad, and 9 to 21 seconds works best on TikTok and Reels where the hook carries the whole thing. On a product or landing page you can go 30 to 60 seconds, because the viewer chose to watch. Email clips should stay under 20 seconds. The single number that matters more than total length is the first three seconds, because that is when the viewer decides whether the rest of your promo video exists at all.
Length is the question everyone asks and it is almost never the reason a promo video fails. A boring 15-second video and a boring 60-second video both get skipped at the same moment: second two. Still, the format does have working ranges, and cutting to them will earn you more completed views than fighting them.
Promo video length by channel
| Where it runs | Working length | Aspect ratio | Why |
|---|---|---|---|
| TikTok ads | 9 to 21 seconds | 9:16 | The feed is fast and the hook is doing the work. Longer rarely pays |
| Instagram Reels and Stories | 15 to 30 seconds | 9:16 | Enough room for hook, benefit, and one call to action |
| Facebook and Instagram Feed | 15 to 30 seconds | 4:5 or 1:1 | Often watched muted. Captions carry the message |
| YouTube in-stream (skippable) | 15 to 30 seconds | 16:9 | You have to earn the fifth second before the skip button |
| Product or landing page | 30 to 60 seconds | 16:9 or 1:1 | The viewer already opted in. You can explain, not just hook |
| Email and lifecycle | 10 to 20 seconds | 1:1 | One clip, one reason to come back. Anything longer gets closed |
The three seconds that decide the other twenty-seven
Every platform's autoplay is a filter. The viewer is not deciding whether to watch your promo video, they are deciding whether to keep scrolling, and they make that call before your logo animation finishes. So the opening must do one specific thing: state the problem or the payoff in language the viewer would use themselves.
Openings that work name something concrete: the annoyance the product removes, the result it produces, or the objection the viewer is already forming. Openings that fail are the ones brands love: a slow product reveal, an establishing shot, a music sting, or the word "Introducing." If your first line could be swapped into a competitor's video without changing anything, it is not a hook, it is a preamble.
Cut to the placement, not to one master file
The other habit worth breaking is producing one 16:9 promo video and pushing it everywhere. Dropped into a vertical feed, a 16:9 file leaves two thirds of the screen empty, and that empty space is where attention would have gone. Cut a vertical version for TikTok and Reels, a 4:5 or 1:1 for Feed, and a 16:9 for YouTube and your site. Modern tools export all of them from the same generation, so this is a checkbox rather than an editing project. The full spec, plus what to put in each, is on our promo video maker page.
How to spend 20 seconds: a second-by-second breakdown
Total length is a container. What decides whether the video works is how you spend the seconds inside it. Here is the structure that survives contact with a cold feed, sized for a 20-second paid social promo.
| Seconds | Job | What it sounds like |
|---|---|---|
| 0 to 3 | Hook: name the problem or the payoff | \"I stopped buying replacement filters every month, and here's why.\" |
| 3 to 7 | Show the product doing the thing | The product in frame, in use, not a rotating packshot |
| 7 to 14 | One benefit, with a specific | \"One charge lasts the whole week, and I use it daily\" |
| 14 to 17 | Handle the obvious objection | \"It's not cheap, but I've replaced three of the cheap ones\" |
| 17 to 20 | One call to action, said out loud | \"Link's below, the bundle is the one to get\" |
Notice what is missing: an intro, a logo animation, a feature list, and a second call to action. Every one of those is a common way brands waste four seconds they cannot afford. If you find yourself needing more than 30 seconds to fit the script, the problem is usually that the script is making two arguments and should be two videos.
Organic posts follow different rules than ads
One more distinction worth making, because it trips people up. A promo video running as a paid ad is interrupting a stranger, so it front-loads everything and ends fast. A promo posted organically on your own account is talking to people who already followed you, and those videos can breathe: a slower build, a story, a reveal at the end all work, because the audience gave you the benefit of the doubt before pressing play. Reusing your paid ad as an organic post is fine. Reusing your organic post as a cold ad usually is not, because it assumes an interest the viewer has not formed yet.
Longer is fine when the viewer asked for it
There is a real exception to all of this. Once someone clicks through to your product page, they have raised their hand, and a 30 to 60 second video can now do work a 15-second ad cannot: show the product working, answer the objection that made them hesitate, and confirm the promise the ad made. Same rule for a webinar registration page or a post-purchase onboarding clip. Attention is not scarce there, it was already granted.
The mistake is inverting the two. Brands routinely run the long explanatory video as a cold ad and put the punchy 15-second one on the landing page, which is exactly backwards: you interrupt strangers with a lecture and then rush the people who wanted to listen.
Frequently asked questions
Is a 60-second promo video ever worth making?
On a page someone chose to visit, yes. As a cold paid-social ad, almost never. If you genuinely need 60 seconds to make the point to a stranger, the point is probably two points, and you should be running two videos.
Should a promo video have captions?
Always, and burn them into the video rather than relying on platform auto-captions. A large share of feed viewing starts muted, so your hook has to land in text as well as sound. Captions are the cheapest performance improvement available to a promo video.
How many promo videos should I make per product?
Plan for five, not one. Keep the product and the offer identical across all five and change only the opening line, so the test tells you which message people respond to rather than which edit looked nicer. Then put budget behind the one that wins and rebuild it properly.