How Long Should Your Brand Video Be: A Breakdown by Platform and Goal

The Attention Span Myth

The widely cited claim that human attention spans have dropped to 8 seconds is not supported by research. What is true is that audience patience with content that hasn't earned their attention is extremely low. There's a difference.

Audiences will watch a 3-hour film, a 10-hour documentary series, or a 45-minute YouTube essay if the content is compelling and respects their intelligence. What they won't do is sit through a 90-second product video that starts with a 20-second logo animation and a CEO who says "welcome to our company" before getting to anything interesting.

Length recommendations matter. But they matter because of how platforms algorithmically reward different lengths and how audiences behave, not because audiences have fundamentally changed.

TikTok

7-15 seconds: Best for hooks, reaction-bait clips, and single-idea content. High completion rate, high rewatch potential.

30-60 seconds: The sweet spot for most branded content. Enough time to set up a problem and deliver a resolution. The algorithm rewards content that gets watched all the way through, and 60 seconds is achievable for engaged viewers.

3+ minutes: Works only for content with strong storytelling, education, or entertainment value. Cooking tutorials, complex explainers, narrative content. Don't attempt this format unless you have evidence from your existing audience that they'll stay.

Instagram Reels

15-30 seconds: Best for discovery. Short Reels get more algorithmic distribution to non-followers. If your goal is reaching new audiences, shorter is better.

60-90 seconds: Better for retargeting and audience depth. Content that requires setup and payoff can work here, especially for audiences who already follow you.

YouTube

Under 2 minutes: Appropriate for awareness campaigns, brand statements, and content that's primarily emotional rather than informational.

5-15 minutes: The mid-funnel educational content zone. How-to videos, product deep-dives, comparison content. YouTube's algorithm rewards sustained watch time, and content in this range that maintains completion rate performs well in search.

YouTube Shorts

Under 60 seconds: Non-negotiable. The Shorts algorithm won't distribute content longer than 60 seconds in the Shorts feed. 30-45 seconds is optimal for most branded Shorts.

LinkedIn

90 seconds for B2B content: LinkedIn's feed auto-plays video but most viewers are in a work context and won't commit to long content. Founder stories and personal testimonials can push to 2-3 minutes if the first 30 seconds earn continued attention.

Brand Films on Website

2-4 minutes: The range that works for a hero brand film living on a brand's homepage or about page. Long enough to tell a story. Short enough that a genuinely interested visitor will watch it completely.

Anything longer than 4 minutes needs to justify itself with complexity. A documentary-length brand film on a website homepage is almost always a mistake.

Other Formats

Testimonials: 60-90 seconds per person. Enough to establish credibility and communicate one clear experience. Multiple testimonials should be cut separately, not combined into a single long compilation.

Product demos: Under 2 minutes for most products. If your product requires a 5-minute demo to explain, that's a product UX problem, not a video length problem.

Explainer videos: 60-90 seconds. The research on explainer video optimal length consistently points to this range. Longer explainers have significantly lower completion rates.

Hero videos on landing pages: 30-60 seconds. Conversion page visitors are in decision-making mode, not browsing mode. A concise, compelling 45-second video that communicates value and creates trust converts better than a beautiful 3-minute brand film.

Email video (animated preview): 15-30 seconds. Email clients typically don't autoplay full video. An animated GIF or short preview that drives a click to the full video is the effective format.