YouTube
5 min read

How to Turn One Long Educational Video Into YouTube Shorts

A practical process for cutting one long educational YouTube video into several Shorts that make sense on their own and send viewers back to the full video.

Quick answer

Watch the long video and mark every moment that makes sense on its own, like a single tip, a common mistake, a surprising fact or a quick before and after. Cut each one to a vertical 9:16 clip under 60 seconds, start it on the most interesting line, add large captions, and reframe so your face or the key visual stays in shot. Then link each Short to the full video using the Related video setting in YouTube Studio.

On this page+
  1. What makes a good educational Short
  2. Step 1: Mark the moments while you watch
  3. Step 2: Start on the strongest line
  4. Step 3: Keep it short
  5. Step 4: Reframe for vertical
  6. Step 5: Add captions that are easy to read
  7. Step 6: Send viewers to the full video
  8. Step 7: Post them over time
  9. Shorts and your long videos help each other
  10. Frequently asked questions

You spend a week on a 15-minute educational video. It gets a few hundred views, mostly from people who already subscribe. Meanwhile, a 40-second clip of someone explaining one idea from a similar video reaches more people in a day.

That's the case for Shorts. Most good educational videos already contain several moments that work on their own. Cutting them out gives the same research and filming a second life, in front of people who would never click on a 15-minute video.

Here's how we find those moments and turn them into Shorts that make sense without the full video.

What makes a good educational Short

A Short has to work for someone who has never heard of you and will swipe away in a second or two. The moments that work best are:

  • One tip. "If your audio sounds echoey, move the mic closer before you buy anything."
  • One mistake. "Most people price their first course too low. Here's why."
  • A surprising fact or number. Anything that makes people stop and think "really?"
  • A quick before and after. Show the problem, show the result.
  • A short answer to a common question. "How long should a course video be?" answered in 40 seconds.

Moments that usually don't work: anything that depends on something explained earlier, long setups, and "as I said before".

Step 1: Mark the moments while you watch

Watch the full video once with a notepad, or read the transcript if you have one. Each time something could stand alone, note the start and end time.

A useful test is to ask: if this were the only thing someone saw from me, would they learn something? If yes, it's a candidate. A 15-minute video often has three to six of them.

Step 2: Start on the strongest line

The biggest difference between a clip and a Short is the first second. In the long video, a point might start with "So, another thing I see a lot is...". In a Short, start on the point itself.

  • Cut straight to the claim, the question or the result
  • If the best line comes at the end, consider moving it to the start and then showing how you got there
  • Remove anything that refers back to earlier parts of the video

Step 3: Keep it short

YouTube now treats vertical or square videos up to three minutes long as Shorts. That doesn't mean you should use all three. For educational clips, 30 to 60 seconds is usually plenty for one idea, and a tight 40 seconds almost always beats a loose 90.

Keep in mind that, according to the same YouTube page, Shorts longer than one minute with an active copyright claim are blocked, so be careful with music on longer ones.

Step 4: Reframe for vertical

Long educational videos are usually filmed 16:9. Shorts are 9:16. Reframing well is most of the editing work.

  • Talking head: crop to keep your face in the upper part of the frame, leaving room for captions below.
  • Screen recordings: zoom into the part of the screen that matters. A full desktop shrunk into a phone screen is unreadable.
  • Diagrams and slides: split the screen, with you on top and the visual below, or switch between them.
  • Two people talking: cut between them instead of squeezing both into one narrow frame.

Step 5: Add captions that are easy to read

A lot of people scroll Shorts with the sound off, so captions do most of the work.

  • Large text, two to five words at a time
  • Placed where your thumb and YouTube's buttons won't cover them
  • Colour the key word in each line, sparingly
  • Check every technical term. Auto-captions often get specialist words wrong, which looks careless on an educational channel

Step 6: Send viewers to the full video

Shorts are good at reaching new people and weak at keeping them on your channel. Connect each Short to the long video it came from.

In YouTube Studio, open the Short's details and use the Related video setting to link it to the full video. The link appears on the Short itself, so viewers who want more can tap through.

In the Short, you can also end with a natural pointer: "I go through all five mistakes in the full video." Keep it short and honest.

Step 7: Post them over time

You don't need to publish every Short on the same day as the long video. Spreading them out keeps the channel active between long uploads, and every Short becomes another way in to the full video.

Shorts and your long videos help each other

Shorts work alongside your long videos. The long video is where you teach properly, build trust and show you know the subject. Shorts are where new people find you. If you've worked on keeping viewers watching your full videos, as covered in our guide to audience retention on educational YouTube, the Shorts send them somewhere worth staying.

Frequently asked questions

How long can a YouTube Short be?

Up to three minutes. YouTube classifies videos with a square or vertical aspect ratio and a length of three minutes or less as Shorts, for uploads from October 15, 2024 onwards. For educational clips, 30 to 60 seconds is usually enough for one idea.

How many Shorts can I make from one long video?

It depends on the video, but a 10 to 15 minute educational video often contains three to six moments that make sense on their own, like a single tip, a common mistake or a surprising fact.

How do I link a YouTube Short to my full video?

In YouTube Studio, open the Short, go to its details and use the Related video setting to choose the long video. A link to that video then appears on the Short for viewers.

Do Shorts help or hurt a long-form educational channel?

Used well, they help. Shorts reach people who wouldn't click on a long video, and the Related video link gives them an easy path to your full content. Each Short should still be useful on its own.

Should educational Shorts have captions?

Yes. Many people watch Shorts with the sound off, and large, accurate captions make the idea easy to follow. Check technical terms by hand, because automatic captions often get them wrong.

Written by the Montagic editing team. We edit online courses, training and educational YouTube videos, and share what we learn along the way. About Montagic

Want us to handle the editing?

Get a free estimate in about 30 seconds, or book a call and we'll talk through your videos, style and timeline.

See our youtube educational video editing service