A 30fps clip judders on pans and fast motion, and simply changing the frame rate in an export dialog only repeats frames, so it looks exactly as choppy. To get real 60fps motion you need new in-between frames. This guide explains how AI frame interpolation creates them, when it helps and when it hurts, and how to convert a clip in the browser.
Quick answer: AI frame interpolation estimates the motion between each pair of frames and draws a new frame in between, doubling the frame count: a 30fps clip comes back at 60fps, a 24fps clip at 48fps. On Imagera's Frame Interpolator you upload a clip of up to 30 seconds, choose SD or HD output, see the credit cost before you run, and download an MP4.
1.Before and after: 32fps in, 60fps out
Source clip: 32fps, 159 frames.
Output from Imagera's Frame Interpolator: 60fps, 321 frames. Frame rates and counts measured with ffprobe on 30 September 2026.
2.How does AI convert 30fps to 60fps?
There are three ways to raise a frame rate, and only one adds real motion:
| Method | What it does | Result |
|---|---|---|
| Frame duplication | Shows each frame twice | 60fps on paper, same judder |
| Frame blending | Averages neighbouring frames | Ghosting on anything that moves |
| Motion-based interpolation (AI) | Estimates motion and draws a new in-between frame | Smoother motion; can warp on very fast or overlapping movement |
AI interpolation is the only one that produces new positions for moving objects, which is why pans, sports and gameplay look smoother afterwards.
3.When should you interpolate, and when not?
Good fits:
- Gameplay, screen recordings and tutorials shot at 30fps.
- Sports, drone and action clips with steady camera motion.
- AI-generated video that plays back at 24–30fps and looks stepped.
- Slow motion: interpolate, then play the result at the original rate for 2× slow motion.
Leave it alone:
- Footage meant to look like film at 24fps. Doubling it gives the smooth "soap opera" look many viewers dislike.
- Clips with hard cuts, heavy shake, on-screen text or objects crossing each other quickly. These are where interpolation warps.
Publishing to YouTube? Its upload guidance lists 24, 25, 30, 48, 50 and 60fps as common frame rates and recommends uploading at the rate the video was recorded (YouTube Help). Interpolate when the smoother motion is the point, not by default.
4.How to convert 30fps to 60fps on Imagera
- Open the Frame Interpolator, or 60fps Smoother in Sandbox.
- Upload the clip. Trim it to the part you need first: clips can be up to 30 seconds.
- Choose output: HD (1280×720, 720×1280 or 720×720) or SD (832×480, 480×832 or 480×480).
- Read the credit cost on the button, then run. The job is billed per 5-second block, so trimming saves credits.
- Download the MP4 and check the fastest-moving sections before you publish.
In the tool's own records (29 completed runs, measured 23 September 2026), the median job took about 1 minute 45 seconds from submit to finished clip.
Need more resolution as well as smoother motion? Run the clip through the Video Enhancer first, then interpolate.
5.Tips for cleaner interpolation
- Start from the best source you have. Heavy compression and low bitrate make motion estimation guess.
- Cut at scene changes. Interpolating across a hard cut produces a morph frame.
- Test a short, fast section first. If a 5-second test warps, the full clip will too.
- Leave 24fps film alone unless you want the smooth look.
6.Can you convert 30fps to 60fps for free?
On Imagera, no: interpolation runs on cloud GPUs and is billed in credits, shown before you run. No-cost routes exist if you have the hardware: desktop tools such as Flowframes render interpolated files on your own GPU, and many video editors include an optical-flow retiming option. The browser route saves the setup and works from a phone or a laptop without a strong GPU.
Plans start at $19.99/mo for 300 credits a month on the Starter plan, and credit packs start at $39.99 (pricing).
For the underlying technique, see what frame interpolation is.
