Pilot Flight Data Calculator

Calculate Your Flight Data

Fetching your location...

Start Location (ICAO, Name, or Lat,Lon):

Destination Location (ICAO, Name, or Lat,Lon):

True Airspeed (TAS) (120 knots): Or Enter TAS Manually (knots):

Cruise Altitude (feet):

Manual Headwind (+) / Tailwind (-) (knots):

Leave manual wind blank to use automatically fetched winds aloft with the button below.

Calculating... Please wait. This may take a moment if fetching wind data.

Flight Plan Details

Departure Point

Location: -

Coordinates: -

Local Time (Departure): -

Arrival Point

Location: -

Coordinates: -

Current Local Time: -

Flight Summary

Great Circle Distance: - NM

Cruise Altitude: - feet

True Airspeed (TAS): - knots

Groundspeed (GS): - knots

Flight Duration: -

Est. Arrival (Dest. Time): -

Wind Conditions

Wind Source: -

Wind @ Altitude: -

Head (+) / Tail (-) Comp: - knots

*This Pilot Flight Data Calculator is intended for educational and general informational purposes only. It does not replace official flight planning tools or certified aviation software. Calculations such as distances, estimated times, airspeeds, and wind effects are based on publicly available data and may not reflect real-world conditions. All results should be independently verified and should not be relied upon for actual navigation or flight planning. Always consult with certified flight operations personnel and follow aviation authority regulations when planning a flight. Use of this tool is at your own risk.

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How to Use the Flight Data Calculator

This powerful flight planning tool helps you estimate great-circle distance, true airspeed, groundspeed, wind impact, and estimated time of arrival using either your current GPS location or a custom-defined start point.

Follow these steps to use the calculator:

Set Your Start Location

By default, the tool attempts to use your current GPS location. If successful, it will autofill the starting point and show your location above the globe.
To enter a custom start location instead, click the “Enter Custom Start Location” button and input an ICAO code, city name, or latitude/longitude (e.g., KJFK, New York, or 40.71,-74.00).

Enter Your Destination

In the Destination Location field, enter an ICAO code, city, or coordinates for your arrival point.

Adjust True Airspeed (TAS)

Use the slider or manually enter your TAS in knots. This value represents your aircraft’s speed in still air.

Set Cruise Altitude

Input your cruising altitude in feet. This affects how wind data is fetched or calculated.

Optional: Add Wind Data

Enter a positive value for headwinds or a negative value for tailwinds.
If left blank, the calculator will attempt to auto-fetch real-time winds aloft based on your cruise altitude and flight midpoint.

Run the Calculation

Click “Fetch Winds & Calculate Flight” to generate your results.
The tool will fetch location data, apply wind corrections, and display your departure and arrival details, estimated groundspeed, total flight time, and more.

Review the Results

The output includes origin and destination coordinates, local times, great-circle distance, estimated arrival time, and a breakdown of wind influence.

Tip: For most accurate results, allow GPS access and use precise location inputs. If wind data cannot be fetched, the calculator will default to zero wind.

Disclaimer: The content provided on this webpage is for informational purposes only and is not intended to be a substitute for professional advice. While we strive to ensure the accuracy and timeliness of the information presented here, the details may change over time or vary in different jurisdictions. Therefore, we do not guarantee the completeness, reliability, or absolute accuracy of this information. The information on this page should not be used as a basis for making legal, financial, or any other key decisions. We strongly advise consulting with a qualified professional or expert in the relevant field for specific advice, guidance, or services. By using this webpage, you acknowledge that the information is offered “as is” and that we are not liable for any errors, omissions, or inaccuracies in the content, nor for any actions taken based on the information provided. We shall not be held liable for any direct, indirect, incidental, consequential, or punitive damages arising out of your access to, use of, or reliance on any content on this page.

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