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   Wind & Time - Speed - Distance   More precise than your average e6b:
Highlight field, type in the unit and get the conversion for all other units
 

Introduction

  
 

Master Wind Correction, Time-Speed-Distance, and Heading Calculations with this Essential Flight Planning Toolkit.

Welcome to your essential toolkit for flight planning and in-flight navigation. This page features a powerful suite of calculators designed to solve the most common and critical calculations for any cross-country flight.

Our tools cover every leg of your journey:
  • Navigation & Heading: Solve for True Heading, Magnetic Course, Magnetic Heading, and Compass Heading.
  • Wind Calculation: Master the Wind Triangle and instantly find your Crosswind/Headwind Components.
  • Flight Planning: Effortlessly calculate your Time-Speed-Distance variables and manage your Fuel-Time-Fuel Flow with temperature based fuel density compensation
This page focuses on navigation, wind, and time/fuel management. Be sure to explore our other pages for the rest of our comprehensive flight planning suite, including essential tools for altimetry, aircraft performance, and standard atmosphere calculations, weight and balance, radius of action, and miscellaneous calculators.

Each calculator is built with a powerful "inverse" feature: simply leave any single field blank, and the tool will solve for it. This makes it perfect for "what-if" scenarios, designing training problems, or planning a flight with partial information. Full support for multiple units is included for maximum flexibility.
  

Page Table of Contents

 Use these links to go directly to desired calculator
  Magnetic Course Wind Triangle
  Magnetic Heading Cross / Head Wind Components
  Compass Heading Time - Speed - Distance
  True Heading Fuel - Time - Fuel Flow

Magnetic Course

  
True Course (TC)   o  
Variation (Var)   o  - E / + W  
Magnetic Course (MC)   o

     Enter any two fields (i.e. True Course, Variation or Magnetic Course)
     then press "Eval" on any remaining field for that field's result. 

Magnetic Heading

  
Magnetic Course (MC)   o
Wind Correction Angle (WCA)   o  - L / + R  
Magnetic Heading (MH)   o

     Enter any two fields (i.e. Magnetic Course, Wind Correction Angle or Magnetic Heading)
     then press "Eval" on any remaining field for that field's result.  

Compass Heading

  
Magnetic Heading (MH)    o  
Deviation (Dev)    o   -  /  +  
Compass Heading (CH)    o  

     Enter any two fields (i.e. Magnetic Heading, Deviation or Compass Heading)
     then press "Eval" on any remaining field for that field's result.

True Heading

  
Magnetic Heading (MH)   o
Variation (Var)   o  - E / + W  
True Heading (TH)   o  

     Enter any two fields (i.e. Magnetic Heading, Variation or True Heading)
     then press "Eval" on any remaining field for that field's result.

Wind Triangle
 Show a decimal point for angular values  
 Show a decimal point for scalar values
          Main Variables
      
          Wind Direction (WD)   o    
          Wind Speed (WS)   knots   km/h   sm/h
          Heading (HDG)   o    
          True Airspeed (TAS)   knots   km/h   sm/h
          Course (CRS)   o    
          Ground Speed (GS)   knots   km/h   sm/h
 
Correlated Variables
Cross Wind Component (XWC)
   knots - L / + R   [km/h]   sm/h
Head Wind Component (HWC)
   knots - T / + H   [km/h]   sm/h
Crab Angle (CRA) Wind Correction Angle (WCA)
   o - L / + R    
Drift Angle* (DRA)
   o - L / + R    

      Unknown Variables * Note: The Drift Angle here is the angle that the aircraft would drift if the Crab Angle or
   Wind Correction Angle were not applied. If the Crab Angle is applied the aircraft's Drift
   Angle is the same as the Crab Angle but in the opposite direction.
      Known Variables

     Specify the unknown variables then enter any field that is white and see the results on the green fields. Correlated
     variables are calculated as a result of the main variables above. XWC and HWC may be entered in place of WD and WS.
     WD and WS will be calculated as a result of XWC, HWC and CRS. If entering XWC and HWC be sure to have the CRS
     set first. Showing decimal places does not affect the precision used in the calculations. Since results are calculated as data
     is entered, be sure to enter all data before interpreting results.  

Cross / Head
Wind Components
 Show a decimal point for angular values  
 Show a decimal point for scalar values
Course (CRS)   o    
Wind Direction (WD)   o    
Wind Speed (WS)   knots   Km/h   sm/h
Cross Wind Component (XWC)   knots - L / + R   Km/h   sm/h
Head Wind Component (HWC)   knots - T / + H   Km/h   sm/h

     Enter the CRS then enter WD and WS or XWC and HWC. When entering WD and WS the XWC and HWC will be calculated
     based on the CRS. When entering XWC and HWC the WD and WS will be calculated based on the CRS.  

Time - Speed - Distance
     
 
Time   h m s hrs mins secs
Speed   knots
   ft/min		 Km/h
 ft/sec		 sm/h
 Nm/min		 m/s
 sm/min
Distance   Nm Km sm ft

     Enter any two fields (i.e. Time, Speed, or Distance) in the box for the appropriate unit being used then press "Eval" for
     the remaining field and get that field's result.

Fuel - Time - Fuel Flow

     
 
Time h 
 m  s		 hrs mins secs
Fuel 
Flow		 USgal/hr
 Liter/hr		 lbs/hr
 USgal/min		 Kg/hr
 lbs/min		 IMPgal/hr
 Kg/min
Fuel USgal
 Liter		 lbs
 m3		 Kg
 ft3		 IMPgal
 fl oz x 100

                                                       Weight per Volume (specific weight)
  Type of Fuel     lbs / US gal lbs / IMP gal Kg / US gal Kg / IMP gal Kg / Liter
  AV Gasoline     
  Jet A     
  Jet B/JP-4     
  Other     
  weight per volume (specific weight) based on temperature        oC   oF   

Note: results for weight per volume (specific weight) are typically accurate up to one decimal point only. Due to the inherent variability of fuels even the same type of fuel may vary greatly depending on its origin. The figures provided here are a very rough estimate.
Values based on FAA-H-8083-1A, Aircraft Weight and Balance Handbook Chart, page 7-13.
  protect type of fuel weight per volume parameters*  

     Enter any two fields (i.e. Time, Fuel Flow, or Fuel) in the box for the appropriate unit being used then press "Eval" for
     the remaining field and get that field's result. Any calculation involving weight will be based on the Weight per Volume
     parameter for the fuel selected. If changing the type of fuel after Fuel Flow or Fuel has been entered weights will
     automatically change and volumes will remain constant.

   *I have allowed the possibility of changing the fuel weight parameters in case you have a more precise value. Be very
     cautious when doing this.


   
 
  Navigation Simulator  
  Practice in our simulator specifically designed for learning the basics of instrument navigation. Try the Navigation Simulator, available for Windows PC. Now completely free, forever!. There is also an online version that runs directly on this website, and can be viewed on a Windows PC, Mac, or Linux OS.  
 

 

 

   
 
  Free Online Simulators
No installation required. These simulators are ready to run on your web browser and have a rich set of features. Practice basic VOR, ADF, RMI and HSI intrument orientation and execute holding patterns. Other simulators include pitot static system and altimeter errors. Click here to go to main online simulator page.		  
 




 

Units and Abbreviations

Length or Distance
m -  meters
ft -  feet
Nm -  nautical miles
km -  kilometers
sm -  statute miles
 
Speed

knots -  knots (Nm/h)
km/h -  kilometers per hour
sm/h -  statute miles per hour
 

Time
h or hr(s) -  hour(s)
m or min(s) -  minute(s)
s or sec(s) -  second(s)
 

Volume
US gal -  US gallons
IMP gal -  Imperial gallons
Liter -  Liter
m3 -  cubic meters
ft3 -  cubic feet
fl oz -  fluid ounce
 

Weight
lbs -  pounds
Kg -  Kilogram
 

Angle
o -  degrees
 

Other
E -  East
W-  West
L -  Left
R -  Right
T -  Tailwind
H -  Headwind
 

 


  		 
By Luiz Roberto Monteiro de Oliveira. Screenshots and video captures allowed (personal, business or military) as long as credited to author and link to this site or URL included. Permission required for all other uses.