Braking Force Calculator Braking Force Calculator Mass: Kilogram (kg) Gram (g) Pound (lb) Speed: Meters per second (m/s) Kilometers per hour (km/h) Miles per hour (mph) Feet per second (ft/s) Stopping Distance: Meter (m) Foot (ft) Yard (yd) Mile (mi) Output Force Unit: Newton (N) Kilonewton (kN) Dyne (dyn) Pound-force (lbf) Calculate