A safe distance measuring device, methods, and processor-readable medium for measuring and displaying a safe distance between vehicle and surrounding traffic. A distance measuring device measures the distances between the vehicle and surrounding traffic. A speed sensor can be utilized for sensing a current speed of the vehicle. A processor calculates the safe distances between the vehicle and surrounding traffic by utilizing the distance measured by the distance measuring device and the current speed of vehicle. A display unit can be utilized for displaying the safe distance between the vehicle and other vehicles. A warning output device can be provided for outputting an alarm to the driver of the vehicle when a vehicle distance is less than the calculated safe distance.