120 FPS Converter
Convert any video to 120fps for ultra-smooth motion or butter-smooth slow motion. RIFE AI generates 3-4× the original frames — natural in-between motion, no duplication artifacts. Perfect for slow-mo edits, gaming highlights, and high-refresh-rate displays.
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Max 10240.0 MB per file · drop multiple for batch
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Processed on our servers — requires a free account
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How to Use 120 FPS Converter
- Upload your 30fps or 60fps video (MP4, MKV, MOV)
- 120fps is pre-selected as the target frame rate
- Choose Browser mode for quick clips or Server mode for AI-quality RIFE output
- Click Process — the AI inserts 3-4 new frames between each existing frame
- Download your 120fps video — play at speed for smoothness, or slow to 30fps for 4× slow motion
Features
- Convert any frame rate to 120fps with RIFE v4.26 AI
- Generates 3-4× new intermediate frames — not frame-blending or duplication
- Unlock smooth 4× slow motion when you drop back to 30fps playback
- Matches 120Hz and 144Hz monitor refresh rates for silky motion
- Works on gaming clips, anime, sports, action sequences
- Free browser mode for short clips, GPU server mode for full-length videos
Frequently Asked Questions
- Why convert to 120fps instead of 60fps?
- Two reasons. First, 120fps matches modern 120Hz/144Hz displays — motion looks visibly smoother than 60fps on gaming monitors and iPhone 15+ / Android high-refresh screens. Second, if you drop 120fps back to 30fps playback speed, you get butter-smooth 4× slow motion — not the stuttering you'd get from naively slowing a 30fps source.
- Is 120fps overkill for most content?
- For viewing on a standard 60Hz display, yes — you'd see the same smoothness at 60fps. But 120fps shines for (a) slow motion (4× ratio from 30fps), (b) high-refresh displays (120Hz+), and (c) very fast action where 60fps still stutters. Budget 2-credit jobs suit short viral clips; 5+ credits for longer videos.
- How long does 120fps conversion take?
- On our GPU server with RIFE v4.26, roughly 2-3× real time — a 30-second clip takes ~60-90 seconds. Browser mode is faster but uses FFmpeg minterpolate which doesn't generate true AI frames.
- Can I convert 24fps film to 120fps?
- Yes. That's a 5× frame multiplication — RIFE handles it, though extreme ratios work best on clean footage without heavy motion blur. For film content you'll often prefer 60fps to preserve the cinematic feel.