How long should a corporate video be: why the right answer never starts with a number

The question "how long should my corporate video be?" is answered poorly in almost every article in the industry because it starts in the wrong place: a number. "30 seconds for ads," "2 minutes for corporate videos," "10 minutes for YouTube." Those ranges aren't useless, but used as the answer they produce videos that don't work on their channel, don't meet their objective, and bore their audience.

The right length isn't decided at the start. It emerges once the objective, the platform, the audience, and the message are well defined. That's why this article isn't a table of numbers: it's a guide to arriving at the right number without copying someone else's.

Length isn't a decision, it's a consequence

When a team decides the length before being clear about what they're telling, the script gets trimmed down — pieces the story needed get cut — or padded out — filler gets added to reach the minute count listed in the brief. Both options produce worse videos than letting the length emerge from well-chosen content.

The right question isn't "how long should it be." It's four:

1. What should the viewer understand or feel by the end of the video? (objective)
2. Where will they watch it and in what context? (platform and consumption)
3. What relationship do they already have with the brand? (cold/warm/hot audience)
4. What action do you expect afterward? (next step)

The answers to these four determine the seconds. If you reach the end of the process and still have no idea about the length, it's not that an estimate is missing: it's that the brief is incomplete.

Reference ranges (with asterisks)

These ranges work as a starting point, not as truth. Any of them can be broken if the content justifies it.

Video type	Typical range	Notes
Social media ad spot	6-30 s	YouTube pre-roll: a 6 or 15s "skippable" beats a 30s non-skippable
Institutional / brand video	60-120 s	If it exceeds 90s, it had better have a strong narrative
Product / explainer	30-90 s	The more complex the product, the more tempting it is to go longer; resist
Software demo	90 s - 3 min	A short video + segmentation by use case usually works better than one long "complete" one
Customer case / testimonial	60-180 s	Wide range: shorter if it's for social, longer if it lives on a service page
Tutorial / how-to	2-10 min	Determined by the actual complexity, not by a rule
Event video / aftermovie	60-120 s	A social version + a 3-5 min master for web
Stories / Reels / Shorts	9-60 s	15-30s is the retention sweet spot for most brands
Web hero video	15-45 s	Muted autoplay: it has to communicate without sound
Organic long-form YouTube	8-15 min	Historical monetization sweet spot; doesn't apply to pure brand
Webinar / training	20-45 min	If it goes over an hour, break it into modules

These numbers are a starting point — the final editor adjusts when they see the material. Treating them as law produces forced videos.

The retention curve: what really matters

Any serious platform shows a retention curve: what percentage of the audience is still watching the video at each second. This curve is more useful than the debate about length because it shows the real problem:

• The first 3-5 seconds are critical. That's where the most audience is lost. Starting with a logo and a black screen is giving away half your viewers.
• The drop-off is steeper before the one-minute mark on most social channels. If your 90-second video has a sharp drop-off at 25 seconds, that's the problem, not the total length.
• With strong content, the curves flatten out. If the story is interesting, people stay. Length is only a problem when the content can't sustain it.
• "Average view duration" is a more honest metric than length. A 60s video with 85% retention converts better than a 30s one with 40%.

Optimizing for retention — not for length — is the most important technical decision in video duration.

The two opposite traps

Trap 1: "as short as possible"

The idea that "users have no attention span" has become doctrine and causes real harm. There are videos that need 90 seconds and get cut to 30 with the belief that they'll "perform better" that way. The result: compressed pieces that don't breathe, don't establish context, and don't allow for emotional connection. You save the viewer 60 seconds and take away their reason to watch.

Trap 2: going longer because the client pays by the minute

The inverse: the client or producer structures the budget by duration, which incentivizes going longer. The result: institutional videos with three wide shots, empty narratives, and diluted messages. The length grows to justify cost, not because the content calls for it.

Both traps have the same origin: deciding length based on something other than the objective of the piece.

How to decide it in practice

A process that works:

1. Write the objective in one sentence. "So that a busy sales rep in Madrid understands in 30 seconds what our platform does and why to request a demo." If it doesn't fit in one sentence, the brief is wrong.
2. Define the platform and consumption context. A video on LinkedIn (muted autoplay, fast scroll) is not the same as a YouTube embed on a product page (high intent, sound on).
3. Identify the 3-5 essential pieces of information that have to travel. Not the "nice to have" ones — the ones without which the video doesn't meet its objective.
4. Write a minimal script and measure its length by reading it at a natural pace. That gives you an honest estimate.
5. Check it against the ranges in the table. If your estimate is very different, there are two options: the content doesn't fit the format, or the piece needs to be redesigned.
6. Review the retention curve of your previous videos. Your audience has specific behavior that industry averages don't capture.

If you arrive at the shoot with this sequence done, the length of the final cut will be within a narrow margin and will be defensible.

Master + cuts: the practice that scales

The question "how long should it be?" is often the wrong question because it assumes a single video. The practice that scales is producing one master and several cuts:

• Master: the most complete version, usually for the web or a service page.
• Long cut: 60-90s, for LinkedIn, the main video in an email, YouTube.
• Short cut: 15-30s, for Reels/Shorts/Stories and ads.
• Micro-cuts: 6-10s, for pre-roll, animated GIFs, recaps.
• Vertical and horizontal: per platform requirement, not on a whim.

Produced well, the master has extra material (b-roll shots, alternate takes, more of the interviewee) that allows you to edit the cuts without reshooting. That decision is made in planning, not in post-production.

Length and creative operations

Length decisions belong to planning, not to the editor when they're already cutting. When a brand makes these decisions reactively — "let's make the video and then we'll see" — it ends up with pieces that don't fit its channel, cuts made against the grain, and review discussions that go back to the original script.

That's why this decision lives in the broader cluster of creative operations: length ties to the editorial calendar (which piece, on which channel, when), to content production (how it's shot to allow master + cuts), and to creative KPIs (what retention and conversion we consider success for each format).

At Polimake, that logic is spread across three surfaces of the same product: Studio to set the objective, platform, and length before the shoot; Studio to produce and version the cuts; and Media as the repository where the master, the cuts, and the per-platform versions live with clear tags — so the next campaign doesn't force you to repeat this same conversation.

Related concepts

• How to write a good video brief
• The process for making a video
• Why I need a corporate video
• What is video marketing
• Why subtitle a video
• How long it takes to make a video

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This piece is part of the Polimake glossary and the cluster on creative operations. If you plan or produce video in a brand or agency, also read the process for making a video and content production.