The Goldilocks Guide to Video Length: Best Practices for Every Platform and Purpose

We’ve all been there: you click on a video, five minutes pass, and you are either furiously checking the progress bar wondering when it’s going to get to the point, or you’re disappointed when the screen fades to black because you wanted more.

In the fast-paced world of digital content, finding the Goldilocks length—not too long, not too short, but just right—is the ultimate superpower for creators, marketers, and educators alike.

Viewers have infinite choices and dwindling attention spans, meaning every second of your video has to earn its keep. But video length isn’t a one-size-fits-all metric. What thrives on TikTok will bomb on YouTube, and what works for a corporate training module will put a webinar audience to sleep.

Let’s break down the data, psychology, and platform best practices to help you nail your video duration every single time.

1. The Core Rule: Content Dictates Duration

Before looking at platform guidelines, remember the golden rule of video production: A video should be as long as it needs to be to deliver its value, and not a second longer.