Solar Impulse Calculator

Not Reviewed
Calculator / Last modified by KurtHeckman on 2016/03/24 11:32
Solar Impulse Pacific
Mid Ocean - Distance
Mid Ocean - Time to Arrive
Pacific Airport Lat Lon
Distance Between Coordinates
Time to Travel between Coordinates
Ground Speed
Correction Angle
Beaufort Scale

The Solar Impulse Calculator computes distances and travel times between locations (latitudes and longitudes) on the globe and provides relevant data on the Solar Impulse mission during it's critical flight across the Pacific.  The goal is to provide useful and timely information to the media and others interested in the Solar Impulse mission based upon simple calculations.


The Solar Impulse voyage is attempting to cross the Pacific from Nagoya airport on the island of Honshu, Japan.  From Japan, the solar powered aircraft is flying to Hawaii.  This will be the first completely solar powered flight across the Pacific ocean in a heavier than air (e.g. air plane) vehicle.

SolarImpulse Pacific Flight.png                         Great circle arc from Nagoya, Japan to Hawaii 

Relevant Data

Velocity (Speed)

The Solar Impulse aircraft cruises at a speed of 70 kilometers per hour (43 mph).  However, ground speed is usually different than air speed.  Based on the wind speed and its direction, the ground speed is greatly effected, going faster with a tailwind and slower with a headwind.  See the Ground Speed equation for detail

Position (Location)

The table below lists the latitude and longitude for airports in Hawaii, Midway Island and Johnston Atoll. The formulas in this calculator provide an estimate of the distances between points (latitudes and longitudes) and the time to travel between them.

Location Table


These airports include the main airports listed in Hawaii if the flight is a success, the home port of Nagoya in case the craft has to turn back, and the abandoned airfields at Midway Island and Johnston Atoll in case of an emergency.

See Also