Slow Motion & Frame Rate Calculator
Calculate playback speed, slow-motion factor and conformed duration from capture and timeline frame rates.
Loading tool… / 正在加载工具…
How to use it
Enter the actual capture frame rate and the timeline frame rate. The result assumes one captured frame is shown for every timeline frame. For 120 fps footage on a 24 fps timeline, the speed is 20% and the clip lasts five times as long. Use actual rates such as 23.976 when needed.
Before you export
Assumes frame-by-frame conforming, not optical flow or a camera file already conformed to slow motion. Audio is not retimed here.
Common questions
How do I use this tool?
Enter the actual capture frame rate and the timeline frame rate. The result assumes one captured frame is shown for every timeline frame. For 120 fps footage on a 24 fps timeline, the speed is 20% and the clip lasts five times as long. Use actual rates such as 23.976 when needed.
What should I check before using the result?
Assumes frame-by-frame conforming, not optical flow or a camera file already conformed to slow motion. Audio is not retimed here.
Do I need an account or upload my files?
No account is required. The tool processes your input in your browser. Downloads are created on your device. The site measures page visits and tool actions, but tool content is masked from session replay and is not included in our tool analytics events. Save your work before leaving.
Can StevenVideo help produce the finished video?
Yes. We create brand, event, social and AI video projects, with real estate services also available. Download your planning result, then use the contact page to discuss the scope. Nothing in this tool books or submits a project automatically.