Want to know how long a video can be on Facebook to get the best engagement? Discover here the best video lengths for different objectives.
While Facebook may not be known first and foremost as a video platform, video still plays a key role in driving engagement, reach, and audience connection, especially when it’s done right. But the question remains: how long should your Facebook videos actually be?
This study dives into performance data from regular videos, Reels, and Live broadcasts to uncover what lengths work best across different content objectives and types. Whether you’re educating, entertaining, or promoting, you’ll find clear, data-backed answers to help you make smarter video decisions on Facebook.
It all comes down to context. The ideal length isn’t just about format — Reels, regular videos, or Lives — it’s also about what you're trying to say.
Educational content usually needs more time to deliver value, while entertainment or promotional content often performs better when it's shorter.
The sections below break it all down, format by format, backed by data that shows what actually works.
Standard Facebook videos (the ones you post to your feed or timeline) offer the most flexibility, but also the most confusion when it comes to ideal length. Go too short, and you risk being forgettable. Go too long, and you risk losing attention.
The data ahead reveals the sweet spot for keeping viewers engaged and your content performing at its best.
When it comes to how long Facebook videos should be for maximum engagement, the data is giving us a clear roadmap. And here’s an interesting thing - if you're cutting your videos short just to match perceived attention spans, you might actually be leaving engagement on the table.
Here’s how engagement rates rank by different video lengths:
The engagement boost from longer videos is small in percentage, but big in impact when you're scaling campaigns.
Here’s why that matters: Facebook’s algorithm rewards retention. When people stay longer, Facebook notices and pushes your content further. Longer videos give you the space to build trust, deliver substance, and trigger action — all things that spike engagement.
Comments tell a different kind of story. While engagement shows overall interaction, comments reflect depth — how much a video moves people to respond, react, or start a conversation.
Here’s how the numbers play out:
So, why do longer videos inspire more comments?
Because they give people something to talk about. Whether it’s a product breakdown, a behind-the-scenes moment, or a mini-doc — long videos build context, spark emotion, and raise questions. That’s comment fuel.
And here’s the kicker: Facebook’s algorithm sees comments as high-quality engagement. The more you get, the more your video gets surfaced — and the more organic traction you earn.
Shares are gold on Facebook. They’re not just passive signals — they’re endorsements. They say: “This is worth spreading.” And the longer the video, the more that’s happening.
Here’s what the data tells us:
So what’s driving this rise?
Longer videos do more than just capture attention — they build trust. They educate. They entertain. They connect. When someone shares a long-form video, it often says, “This helped me — it’ll help you too.”
And this is critical: Facebook’s algorithm loves shares. They expand reach far beyond your own audience, turning your viewers into your distributors.
The data speaks for itself — longer videos get watched more. Not just slightly more. A lot more.
Here’s the breakdown by median views:
So what’s driving the surge in views for longer videos?
Simple: Facebook rewards watch time. The longer someone sticks with your content, the more the algorithm boosts it. And longer videos — when done right — offer more value, more depth, and more reason to stay. That retention snowballs into reach.
Facebook allows videos up to 240 minutes, but let’s be real — no one’s sticking around for that. Based on the data, the best-performing length is right around 3 minutes.
That’s the sweet spot where engagement rates climb, shares increase, and views spike — especially for content that educates, entertains, or tells a complete story. It's long enough to deliver value, short enough to keep attention.
If you're aiming for impact, plan for 2 to 4 minutes, with 3 minutes being the gold zone.
With Reels, you’ve got seconds to make it count — but shorter isn’t always smarter. The trick is knowing when to cut and when to stretch.
Reels that perform aren’t just fast — they’re timed right for the message. Here's where length starts to matter, and how the numbers shift as you push past different time marks.
Reels are built for speed, but even in short-form, length still matters. These numbers prove that even in a format where everything’s fast, slightly longer Reels still drive better engagement.
Here’s how engagement rises across lengths:
So what’s driving this incremental lift?
Even in a rapid-fire environment like Reels, audiences still crave context, payoff, and connection. That’s tough to do in under 15 seconds.
When it comes to sparking conversation on Reels, short doesn’t cut it. The comment count barely moves until your content actually gives people something to react to.
Here’s how the numbers break down:
So what’s happening here?
Reels that run past 30 seconds begin to tell more complete stories. That added structure gives your audience something to latch onto — whether it’s humor, insight, controversy, or relatability. And when you hit the 60–90 second range, you’ve created just enough emotional or intellectual friction to get people talking.
Short-form doesn’t mean shallow — but you’ve got to earn your share. This data shows one thing clearly: the longer the Reel (within the 90s limit), the more likely people are to pass it on.
Here’s the breakdown:
So why do longer Reels get more shares?
Because sharing isn’t just about entertainment — it’s about perceived value. Whether that’s inspiration, education, humor, or a relatable message, Reels closer to 90 seconds give you the time to deliver something worth spreading.
Here’s what this data shouts loud and clear: longer Reels get watched more. And not just marginally — that final leap in views is massive.
Here’s the breakdown:
What’s behind this jump?
It’s simple: the longer the viewer stays, the more Facebook’s system sees your content as “sticky.” That boosts visibility in the feed, the algorithm picks it up, and your views compound fast. And let’s not forget — longer Reels give more value, more emotion, more payoff. That’s what keeps people watching and coming back.
Reels max out at 90 seconds, and if you're smart, you'll use every second.
The data shows Reels that land in the 60–90 second range consistently outperform shorter clips across all metrics — engagement, shares, and views. That’s because longer Reels give you room to tell a story, land a message.
Still, don’t stretch just to fill time. If the idea hits in 30 seconds, post it. But if you’ve got something strong, don’t cut it short — let the full 90 seconds work for you.
Live videos play by different rules. You’re not just posting — you’re performing. And how long you stay live can make or break the outcome. Cut it short, and you miss your moment. Drag it out, and you risk losing the room.
The data ahead shows when to go long, when to wrap it up, and how to keep the energy high from start to finish.
Engagement is the heartbeat of any Facebook Live. Unlike pre-recorded content, Live videos depend on real-time reactions — comments, likes, emoji bursts — to keep momentum going.
And more importantly? Facebook’s algorithm loves Live videos with strong engagement, rewarding them with longer visibility and broader reach while you’re still live.
But engagement isn’t flat — it rises and falls depending on how long you stay live.
Here’s how the numbers stack up:
The pattern is clear: engagement takes time to build, but it doesn’t last forever. Your job? Hit the high point before attention fades.
If you're planning a Facebook Live and want to maximize interaction, aim for 40–50 minutes. That’s when your audience is most engaged, your reach is widest, and your message lands hardest. Anything shorter and you’ll miss the momentum. Anything longer? You risk losing the room.
If you want conversation, Live is where it happens — but timing is everything.
Why do comments matter so much for Facebook Lives? Because they’re more than feedback — they’re fuel. Every comment tells the algorithm your video is active, relevant, and worth keeping in the feed. It also creates a loop: the more comments you get, the more your live gets shown, and the more people jump in to comment.
Here’s how the comment volume builds over time:
So what’s the takeaway here?
While engagement rates peak earlier, comments just keep climbing. That means if your content has depth — a live Q&A, a launch, an in-depth walkthrough — going beyond 50 minutes can actually pay off. People start interacting more as they get invested.
Shares are the holy grail of Live content — but they’re not easy to earn. Unlike quick reactions or passive comments, a share means someone found real value in what you’re doing — enough to tell others, “Hey, you need to see this.”
With Lives, shares build slower than other engagement signals. But when they show up, they show up big.
Here’s the breakdown:
So what’s really happening here?
Short Lives might spark interest, but they rarely create share-worthy moments. It’s the long, meaty, content-rich sessions that viewers feel compelled to share, especially if there’s exclusive info, powerful storytelling, or a clear call to action.
For views
Views tell you how many people showed up. But on Live, they also reflect how long you stayed in the game. And this dataset makes it crystal clear: the longer you go — with purpose — the more visibility you unlock.
Here’s the breakdown:
Why such a dramatic spike?
Because the Facebook algorithm favors Lives that keep people engaged for longer periods. When your Live crosses that 50-minute mark — and it’s still generating comments, reactions, and shares — Facebook pushes it harder into feeds. Plus, it gives late joiners more time to catch the replay while you're still live.
Facebook Live videos can run up to 8 hours — but unless you're livestreaming a conference or a concert, that’s overkill.
What actually works? 40–50 minutes is the high-performance zone for engagement and shares. That’s when people are active, chatting, and spreading the content.
Go over 50 minutes, and comments start climbing — but only if the content holds up. If you're bringing real value — think launches, Q&As, deep dives — then pushing past 50 minutes can seriously pay off.
The key? Don’t just go long. Go long with purpose.
The truth is, there’s no one-size-fits-all rule for video length on Facebook — because not all content is created with the same purpose. What works for entertainment won't land the same way for education, and a quick-hit promo shouldn’t try to mimic a 50-minute livestream.
But thanks to the data, we now know how video length performs when it’s matched to the right kind of content. Here’s how to make that pairing work.
Educational videos thrive on clarity, not speed. If you’re teaching, explaining, or demonstrating something, you need time — and your audience is willing to give it.
Across all formats, the longer the educational content, the better it performed:
When you're entertaining, you're competing with a scroll — and the scroll is ruthless.
But here’s the twist: our data showed that longer entertainment works… when it stays entertaining.
Promotional content lives or dies by how fast it can connect with value. You're not just selling — you're convincing someone to care, fast.
Based on the data:
However, you don’t have to stick to these time intervals no matter what. The secret is to take these tips as a starting point and then check your own data to find that sweet spot for your audience. Because the truth is that different audiences want different things.
You can easily gain insights that will help you optimize your Facebook video marketing strategy with a social media analytics tool, such as Socialinsider, that allows you to track advanced video performance metrics, such as engagement by video length, or video posts engagement distribution, as you can see in the image below.
To get this data, you have to:
Additionally, by tracking your videos’ engagement evolution, you can identify potential spikes or drops and easily pinpoint the videos that generated them. This will further help you optimize your strategy, by identifying how effective videos look like and what types it’s best to avoid.
UGC is powerful because it feels real. But real doesn’t mean random — length still matters.
What we saw:
Length gets you in the game. But what keeps people watching, clicking, and sharing? These advanced tactics will make every second of your video count.
To quickly identify what your top videos were over a certain time, you can easily head over to Socialinsider, go to the Posts section, and filter performance by content type through the right-sided menu.
With this approach, you can spot the best-performing content formats in seconds.
The findings of the study were based on the analysis of 3M regular Facebook videos, 1M Facebook Reels, and 705K live sessions, published between January 2024 and December 2024.
Please remember that, depending on your industry and audience size, your video analytics may indicate different best practices. These benchmarks offer some light into how different types of videos perform, based on various lengths, but it's always best to optimize your strategy based on your own performance insights.
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