A system for calculating an instantaneous fuel economy for a vehicle is disclosed herein. The system includes, but is not limited to, a speed sensor that is configured to determine a current speed of the vehicle, an acceleration sensor that is configured to determine a current acceleration of the vehicle, a fuel sensor that is configured to determine a current fuel consumption rate of an internal combustion engine of the vehicle, a display unit, and a processor. The processor is communicatively coupled with the speed sensor, the acceleration sensor, and the fuel sensor, and is operatively coupled with the display unit. The processor is configured to determine the instantaneous fuel economy of the vehicle based on information obtained from the speed sensor, the acceleration sensor, and the fuel sensor. The processor is further configured to instruct the display unit to display the instantaneous fuel economy.