Abstract: Systems and methods for verifying that the flight crew has not made an error in entering takeoff flight performance data into the flight management system (FMS) using the electronic flight bag (EFB). The EFB includes a user interface that receives basic flight plan information and a processor. The processor automatically receives calculated takeoff performance data based on a previously entered basic flight plan, automatically receives user-entered takeoff performance data from a flight management system (FMS) located on a host aircraft, automatically compares the calculated takeoff performance data to the received takeoff performance data, and generates an entry error indication, if the comparison indicates that at least a portion of the entered takeoff performance data does not match the calculated takeoff performance data. An output device outputs the generated entry error indication.