Release Measuring Tools Release Tools Calculate Release RPM RateRPM rate calculator based on video frame rate. Select The Video Recorded Frame Rate30 fps (US)60 fps (US)120 fps (US)240 fps (US)25 fps (PAL)50 fps (PAL)100 fps (PAL)200 fps (PAL)Number of Frames for One Full RevolutionRPM Rate at Release Release Ratio CalculatorCalculate the ratio of bowlers release ball speed vs the balls spinning speed. Ball Speed at Release (MPH)Bowlers Axis Tilt (Degrees)Bowlers Release RPMsResults BelowRelease Ratio CalculationRelease Ratio Share this:FacebookX