Current Altitude (ft)

Target Altitude (ft)

GS above / below FL100 (kt)

Target Descent Rate (fpm)

Distance to Target (NM)

Plan your descent by calculating either the required distance to start your descent or the vertical speed needed to hit a target.

Output Miles from Target: Calculates when to start descending based on a fixed FPM. Includes a buffer for deceleration at FL100.

Output Vertical Speed: Calculates the constant descent rate required based on your current distance from the target.