Slow-Motion Frame Rate Planner
Work out the frame rate to shoot for a slow-motion factor, the matching shutter speed and the real-time length needed, free online.
About this calculator
Slow-motion factor = shooting fps ÷ playback fps. Shooting at 120 fps and playing back at 24 fps gives 5× slower motion. Keep the shutter near 1 ÷ (2 × shooting fps) for natural blur. A 10-second final clip needs 10 ÷ factor seconds of real action.