For most punchline-driven jokes, the best length for a comedy YouTube Short sits between 20 and 35 seconds, with the tightest performers landing around 24 seconds. That range gives you enough room to set up a situation, pay it off, and still get a replay before the viewer’s thumb moves. Anything past 45 seconds needs a second joke to justify itself, and most of the time it doesn’t have one.
Length is not a style choice. It is a math problem about how long a stranger will tolerate your setup before the next video loads.
Why 20 to 35 Seconds Keeps Winning
A comedy Short has to do three jobs: hook in the first second, build a tiny bit of tension, then release it. Our own data across hundreds of uploads shows retention falls off a cliff somewhere between second 8 and second 12 on weak setups, and almost never recovers. If your punchline lands at second 50, the people still watching are already a fraction of who started.
The shorter runtime also stacks your odds on replays. A 24-second video watched twice reports better than a 70-second video watched once, even though the raw minutes are similar.
- Under 10 seconds: great for a single visual gag or one-liner, risky because there’s no time to recover from a flat open.
- 10 to 20 seconds: ideal for reaction bits, quick pranks and anything where the joke is the image itself.
- 20 to 35 seconds: the dependable zone for setup plus payoff, which is where most scripted comedy shorts live.
- 35 to 60 seconds: works when you have an escalation (joke, bigger joke, biggest joke) rather than one punchline stretched thin.
- Over 60 seconds: only worth it for story-driven bits where viewers are following a situation, not waiting for a line.
Three-Minute Shorts Changed the Ceiling, Not the Habit
YouTube raised the maximum Shorts video length to three minutes, and you can confirm the current specs in YouTube’s own Shorts help documentation. That extra room helped vlog-style and storytelling creators quite a bit. It did very little for comedy.
Viewers did not suddenly grow more patience because the upload limit moved. The feed still rewards whatever holds attention per second, and a 2-minute sketch competes against a 15-second clip that gets watched three times in a row. We have tested long-form comedy in the Shorts feed and the pattern is consistent: the same joke performs better cut to a third of its length, even when the longer version is objectively funnier to us.
Match the Runtime to the Joke Structure
Instead of picking a number first, figure out what kind of joke you built, then let that decide the length. We sort almost everything into four shapes.
- The one-liner: one visual or one sentence, 8 to 15 seconds. No cold open, no context, no explanation afterward.
- The setup and payoff: a situation established in 6 to 8 seconds, complication in the middle, punchline at the end. Total runtime 20 to 35 seconds.
- The escalation: three beats that each get stupider. These earn 40 to 70 seconds because the viewer is being paid off repeatedly instead of waiting.
- The slow burn: a bit where the comedy is in watching something go wrong over time. These can run 60 to 120 seconds, but only if the first three seconds promise a specific outcome.
If you cannot name which of these four you made, the video is probably a setup and payoff with too much air in it.
The Loop Is Doing More Work Than You Think
A looping Short is one where the final frame hands off cleanly to the opening frame, so the restart feels intentional rather than jarring. On a 20-second video, one loop turns a 100% view into a 200% view in terms of watch time, and that kind of signal moves videos in the feed fast.
We build loops by ending on the same framing, room or sound we opened with. Cutting the last half second of dead air at the end matters more than almost any other edit, because that trailing beat is where people swipe. When we wrote about how we racked up millions of Shorts views before we understood any of this, the accidental common thread across our best performers was that almost all of them looped without us planning it.
What the TikTok and Reddit Advice Gets Half Right
Search this topic and you will read Reddit threads insisting that 7 seconds is the magic number, plus TikTok-focused advice pushing 60 seconds or more for watch time. Both are describing real platform behavior, just not the same one.
TikTok has historically been friendlier to longer clips because its comment and rewatch culture keeps people parked on a video. YouTube Shorts viewers tend to be more aggressive swipers, and they arrive from a platform where long-form content already exists for anything substantial. A comedy video that works at 55 seconds on TikTok often needs to be 30 seconds on YouTube, and we routinely cut separate versions rather than cross-posting the same file.
The 7-second advice is not wrong either. It works for pure visual gags, and it fails badly for anything requiring context, which is most written comedy.
How We Cut a Short Down Before Posting
Our edit pass is less about adding jokes and more about deleting the parts between them. A 45-second rough cut regularly becomes 26 seconds without losing a single laugh, and that is usually the version we post.
- Delete every frame before the first interesting thing happens, even if it breaks the “proper” opening.
- Cut any line that explains something the audience already figured out from the visual.
- Trim reaction shots to their peak and get out, rather than letting them play to the end.
- Remove the second half of the punchline if the first half already landed.
- Watch it on your phone with the sound low to see where your own attention drifts.
It takes longer than people expect, which is why we broke down how much work actually goes into a 20-second comedy video. The cutting is most of the job.
Length Affects Subscribers Differently Than Views
Very short videos can rack up enormous view counts and convert almost nobody, because viewers never spend enough time with you to form an impression. Slightly longer comedy, in that 25 to 40 second band, tends to produce better subscriber numbers per thousand views in our experience, since people get a sense of the personalities involved.
That tradeoff is worth planning around if growth is the goal rather than vanity metrics. We go deeper on the conversion side in our breakdown of gaining YouTube subscribers with Shorts, but the short version is that a viewer needs to remember who made the thing. With roughly 83% of U.S. adults using YouTube according to Pew Research Center’s social media data, the audience size is not the constraint. Being memorable is.
Frequently Asked Questions
What Should Be the Duration of YouTube Shorts?
YouTube Shorts can run up to 3 minutes, but the practical sweet spot for comedy is 20 to 35 seconds. Vertical format and a 9:16 aspect ratio are required for the video to be treated as a Short, and anything longer than about 60 seconds should earn its runtime with multiple payoffs rather than one delayed punchline.
What Is the Funniest YouTube Short Ever?
There is no official ranking, though the most-replayed comedy Shorts tend to be under 30 seconds and built around one clear visual payoff. Compilation channels and the Shorts feed itself surface different “funniest” clips constantly, which tells you more about distribution than quality.
What Is the 30 Second Rule on YouTube?
The 30 second rule refers to YouTube counting an engaged view once someone watches at least 30 seconds of content, or the full video if it is shorter than 30 seconds. For a 24-second comedy Short, that means a complete watch counts fully, which is one more reason short runtimes report well.
Is 2000 Views in 1 Day Good?
For a channel under 10,000 subscribers, 2,000 views in a day is a solid result and usually means the video cleared its initial test audience. Shorts often sit flat for 24 to 72 hours before a second wave of distribution, so judging a video on day one tends to be premature.
Watch How We Cut Ours
Our Shorts live on the Slushy Bros creators page if you want to see these runtimes in practice rather than on paper. Steal the timing, steal the loop, just do something funnier with it.
