Wind correction
Calculate WCA, heading, groundspeed, headwind or tailwind, and crosswind from your course, wind, and true airspeed.
Wind correction & holding
WCA Toolbox is a precise, offline aviation calculator for wind correction angle and holding-pattern planning—built around clear, pilot-facing results.
From a quick wind correction to a planned hold, WCA Toolbox keeps the inputs familiar and the result easy to interpret. It works entirely on your device, whether you are preparing at home or planning on the move.
Calculate WCA, heading, groundspeed, headwind or tailwind, and crosswind from your course, wind, and true airspeed.
Use a magnetic inbound track and true wind data to receive inbound and outbound track, heading, correction, and outbound-time guidance.
The detailed holding method models both turns and both straight legs. A conventional 3× approximation is also available for reference.
Save calculations locally, reopen them when needed, and work without an account, cloud sync, or internet connection.
Planning assistance only. WCA Toolbox does not replace published procedures, ATC instructions, aircraft documentation, operational judgement, or instructor guidance.