Find out your cars 0 to 60 mph and a quarter mile times - the golden standard of vehicle performance measurement. Share your results and compare with other users! The speedometer measures your exact speed using your device GPS. The app starts the measurement automatically when you start moving, providing a safe and smooth hands-free experience. Save your money on expensive and huge external gadgets! Available measurements for mph: 0 - 60 mph, 60 - 130 mph, 0 -130 mph, 1/4 mile Available measurements for kph: 0 - 100 kph, 100 - 200 kph, 0 - 200 kph, 1/4 mile