Frame Rate Converter for PC | Change Video FPS to 24, 30, 60, 120

🤔 What is the frame rate?

Generally speaking, the frame rate is how many images (frames) of an animation appear on your screen per second. It is measured in frames per second (aka FPS). The term applies equally to film and video cameras, computer graphics, and motion capture systems.

🤔 How does the frame rate affect video?

The frame rate affects how smooth the motion is and how realistic the video looks.

A low frame rate will create a flickering effect and make the video a bit choppy. A high frame rate, however, can add more fluidity to the video, make it more realistic, and make slow-motion video smoother.

However, a video with a higher frame rate may be refused and unplayable since some devices only accept a certain standard value of frame rate.

🤔 Common frame rate standards for video: 23.976/24 fps for movies, 25 fps for PAL-region TV, 29.97/30 fps for general online videos, 50/60 fps for sports and gameplay, and 100/120 fps or higher for high-frame-rate (HFR) recording and slow-motion editing.

💡 What is HFR video? HFR usually refers to videos recorded or delivered at higher-than-standard frame rates, such as 48, 50, 60, 100, 120 fps, or above. HFR footage looks clearer in fast motion and is useful for sports, action, gameplay, VR, and slow motion. But it also means larger files, heavier editing, and possible playback or upload compatibility issues on older devices or apps.

Moreover, there are two types of frame rates: VFR (variable frame rate) and CFR (constant frame rate). VFR is common in phone recordings and screen recordings because it can save space. However, many editors, players, and platforms handle CFR more reliably. If your audio goes out of sync or editing feels laggy, converting VFR to CFR may help.

Before changing the frame rate, it helps to know what each common FPS is usually used for. A higher number is not always better. The right choice depends on the source video, your target platform, and whether you want normal playback or slow motion.

24fps: A common movie-style frame rate. It is a good choice when you want to convert 60fps or 120fps footage to a more cinematic look or reduce file size. But it may look less smooth for fast sports, games, or camera pans.

25fps: Often used in PAL regions and some broadcast workflows. Use them when your project, camera, or delivery standard requires them.

30fps: A practical choice for tutorials, vlogs, social videos, and general online playback. It gives smoother motion than 24fps while keeping file size easier to manage than 60fps.

60fps: Good for gameplay, sports, action clips, and screen recordings. It looks smoother but needs more bitrate and storage. If the video is too large or not supported, converting 60fps to 30fps or 24fps can help.

100/120fps or higher: Usually recorded for HFR playback or slow-motion editing. For normal viewing, you can convert 120fps to 24fps or 30fps without slow motion. For slow motion, put the high-fps footage on a lower-fps timeline in a video editor and reduce the speed instead.

Quick rule: When changing FPS for compatibility, keep the normal speed and choose 24/30fps. When changing FPS for slow motion, do it in an editor so the extra frames are played over a longer time.

Besides using the desktop video frame rate converter, there are many online video frame rate converters you can try. They are convenient for small clips because you do not need to install software. The following will take VEED.IO as an example to show you how to adjust video frame rates online for free.

Step 1. Visit https://www.veed.io/tools/video-frame-rate-converter to open the VEED.io video frame rate converter.

Step 2. Click "Adjust video frame rate" and upload the video.

Step 3. On the left side of the interface, scroll down to "Frames Per Second" under the "Project Settings" tab. Then adjust the video frame rate to the value you desired.

Step 4. Then, click "Done" on the top-right corner to export the video.

Online tools are better for short test clips than for large 4K, 60fps, 120fps, or batch conversion tasks. Free plans may limit export resolution, file size, video length, and may add a watermark. These limits can also change over time, so check the tool's pricing or export page before processing important files.

🎯 Actually, it is not recommended to change video fps online if you need stable quality, batch processing, or large-file conversion. FPS changing is CPU-intensive and uploading/downloading large HFR files can take a long time. A desktop converter is usually more reliable for MP4, 60fps, 120fps, and HFR videos.

Q1. Can you convert frame rate?

Yes. With a frame rate converter, you can adjust the frame rate of a video to 24, 25, 30, 50, 60, 120, or a custom value. But note that changing FPS does not automatically improve real quality. Lowering FPS drops frames, while increasing FPS usually duplicates or interpolates frames.

Q2. What's the best frame rate for YouTube?

There is no single best frame rate for every YouTube video. 24 or 30 FPS is enough for most tutorials, vlogs, and talking-head videos. 60 FPS is better for gameplay, sports, and fast-motion content. The safest choice is to upload the video at the same frame rate you recorded or edited it in, unless you have a clear reason to convert it.

Q3. Can I convert 60fps or 120fps to 24fps without slow motion?

Yes. If you set the output frame rate to 24fps in a converter, the video will keep normal speed and extra frames will be removed. This is useful for file size reduction, compatibility, or a movie-like look. If you want slow motion, use a video editor to slow down the high-fps footage on a lower-fps timeline.

Q4. Can I convert 30fps to 60fps?

Yes, you can. However, converting 30 fps to 60 fps usually repeats frames unless the tool uses frame interpolation. The output file may show 60fps, but it will not contain the same real motion detail as a video originally recorded at 60fps.

Q5. Does changing MP4 frame rate reduce file size?

It can, especially when you reduce a high frame rate such as 60fps or 120fps to 30fps or 24fps. But file size also depends on resolution, codec, bitrate, duration, and audio settings. For better compression, adjust the bitrate or use a more efficient codec together with frame rate conversion.

Q6. Should I use CFR or VFR?

For editing, uploading, and device compatibility, CFR is usually safer. VFR can be fine for casual playback, but it may cause audio sync issues or timeline lag in some editors. If your video behaves strangely, try converting it to a constant frame rate.

Changing the video frame rate can make your video run smoothly on your device, reduce file size, match an editing project, or avoid possible playback and upload issues.

For small clips, you can try an online frame rate converter. But for MP4 files, large videos, 60fps/120fps footage, HFR videos, or batch processing, it is more practical to use WonderFox HD Video Converter Factory Pro. It lets you change video FPS to 24, 25, 30, 50, 60, 120, or a custom value while also adjusting format, codec, resolution, bitrate, and other settings in one place.