Joules to FPS Calculator Enter any 2 values to calculate the missing variable Energy J kJ BTU Mass g kg lb Velocity ft/s m/s km/h Calculate Reset Show Calculation Steps ▼ More CalculatorsLength CalculatorsConservation of Momentum CalculatorTotal Energy Calculator Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Name * Email * Website Comment * Save my name, email, and website in this browser for the next time I comment.