120 FPS to 90 FPS Converter

FreeNo watermarkNo signupUp to 100 MBDeleted after 1 hour

Convert 120 fps video to 90 fps online. 90 fps is a high-refresh rate used by action cams and VR headsets. Frames are resampled evenly; duration, audio and sync stay exactly as they were.

Drop a video here, or click to browse
MP4, MOV, WebM, MKV, AVI… up to 100 MB
Target frame rate
Options

How to convert 120 fps to 90 fps

  1. Upload your video. Drop your 120 fps clip into the converter — up to 100 MB, any common format.
  2. Confirm 90 fps. 90 fps is preselected on this page. Pick a different target or type a custom rate if needed.
  3. Convert. Click Convert and watch live progress — most clips finish in under a minute.
  4. Download. Download the converted MP4. The file stays available for 1 hour, then it's deleted automatically.

When you need 90 fps

How the conversion works

Frames are resampled down from 120 to 90 fps. 90 doesn't divide 120 evenly, so frames are dropped in a slightly uneven pattern — barely noticeable in most footage. Duration and audio are untouched — only the frame count changes, so nothing drifts out of sync.

MethodEven frame resampling (drops extra frames)
OutputMP4 — H.264 video (CRF 20), AAC audio, web-optimized (faststart)
Duration & audioUnchanged, stays in sync
Input formatsMP4, MOV, WebM, MKV, AVI… anything FFmpeg reads
PrivacyProcessed on our server, auto-deleted after 1 hour, never shared

Frequently asked questions

Does converting 120 fps to 90 fps lose quality?

You lose the extra frames — that's the point — but each remaining frame is re-encoded at high quality (H.264, CRF 20). Resolution, duration and audio are unchanged.

Does it change the video length or audio?

No. Only the frames-per-second count changes. Duration is identical and audio is carried over in sync.

What formats can I upload, and what do I get back?

Upload mp4, mov, webm, mkv, avi… anything ffmpeg reads. You get back a widely compatible MP4 — H.264 video (CRF 20), AAC audio, web-optimized (faststart).

Is this 120 to 90 fps converter free?

Yes — free, no signup, no watermark. Files up to 100 MB, deleted automatically after one hour.

Will the lower frame rate reduce file size?

Usually yes — fewer frames per second means fewer frames to encode, so 90 fps files come out smaller than their 120 fps source at the same quality.

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