Abstract: A vehicle trip recording apparatus collects trip data for manipulation by a separate computer. The computer software contains all the required controls and data manipulation programs for the trip recording device. The trip recording device contains only the hardware to collect and save distance pulses, current time and date, to talk with the computer, and a two button command interface. Of the two button command interface, one of the buttons selects between automatic or manual mode. The second button is a push type and performs the start/stop trip function when the first button is in the manual position. When the first button is in the automatic position, the second button preforms the start/stop calibrate function. Once the trip data has been downloaded into the computer, the trip data can be formatted, printed and saved with the separate computer.