Download the app from the Apple app store by clicking the link App store button below. 


Landing Distance Calculator V 2 14
Excel – 2,8 MB 295 downloads
User Manual Landing Distance Calculator V 1 3 2
PDF – 4,5 MB 141 downloads

Hi everyone,


Landing distance calculator enables quick calculation of landing distances, brake cooling advice and much more.


Version 1.4 is the most recent iPad version of the Excel based Landing Distance Calculator which I started developing in 2015.


Many features are included, such as:

- Normal landing distances

- Non normal landing distances

- Combined output of distances for all possible flap and braking configurations

- Presentation of Brake Cooling Advise in colours and in values

- Rejected Take-off Brake Cooling Advice

- Integrated Wind Calculator

- Cross- and Tailwind Limitations

- (Approach and) Landing Climb Limit Weight

- Go-around Climb Gradient

- Gear Down Landing Rate of Climb Available 

- Tire Speed Landing Limit Weight

- Flight with Unreliable Airspeed table

- Flap Maneuver Speeds and VREF

- An intuitive multifunctional data entry pad for easy entry of data

- Supports multiple weight, distance, pressure and temperature units

- Support landscape and portrait view, light and dark mode

- In app user manual

- The full KLM Boeing fleet in 1 app:

- 737-700W

- 737-800W

- 737-800W SFP1

- 737-900W

- 777-200ER

- 777-300ER

- 787-9

- 787-10


The app is free of charge. Due to a co-operation with WIngs of Support it is possible, without obligation, to make an in app donation to charity.


I hope you will enjoy using this app.


Happy landings!

Roland Peeters (Captain KLM 777)


Feedback can be sent to

DISCLAIMER: This calculator is not approved for operational use. Pilots should always refer to approved sources.


Revision history:

v1.0 (21-09-2021)

  • First release

v1.1 (21-10-2021)

  • 777-200ER and 777-300ER FUEL QTY LOW, manual speedbrakes double distance correction for manual speedbrakes fixed.
  • Changed colours for both day and night modes to reduce contrast and increase readability. 
  • Invalid input now disables output.
  • Landing weight input now valid up to Maximum Take-off Weight. Landing weights above Maximum Landing Weight which do not exceed Maximum Take-off Weight are now shown in RED.
  • Changed the keypad click sound to the iOS default sound.
  • Fixed donation payment issue.
  • Added a function that resets all input to default if the Backspace button is held for 3 seconds.
  • Fixed taxi miles entry issue.
  • Updated user manual.
  • Other minor bug fixes.

v1.1.1 (3-11-2021)

  • Fixed Vref ADJ(AT OFF) issue for gusty winds.
  • Introduced possibly to turn off keyboard click in settings.

v1.1.2 (12-11-2021)

  • Fixed issue with maximum tailwind for B737.
  • Settings page: corrected engine, certification and brakes data for B737-700W. 
  • Updated user manual.

v1.2 (1-1-2022)

  • Added portrait mode.
  • Added RTO brake cooling advice.
  • Notes regarding landing weight exceedances are shown in red colour.
  • Minor bug fixes.
  • Updated user manual.

v1.2.1 (3-1-2022)

  • Fixed a bug in the RTO brake cooling info box.
  • Updated user manual.

v1.2.2 (5-1-2022)

  • Fixed another bug in the RTO brake cooling info box.
  • Updated user manual.

v1.3 (3-2-2022) Major update

  • Added an automatic notification if a new version is available in the App store.
  • Enabled Fahrenheit settings option.
  • Added Landing Climb Limit Weight.
  • Added Go-around Climb Gradient.
  • Added Tire Speed Limit Landing Weight for 787.
  • Added Flight with Unreliable Airspeed tables.
  • Added Flap Maneuver Speeds and VREF.
  • Other small app improvements.
  • Updated user manual.

v1.3.1 (28-4-2022) 

  • 777 and 787: Landing Climb Limit Weight now titled Approach or Landing Climb Limit Weight.
  • 787: Fixed issue with Airspeed Unreliable table values.
  • 737: Adjusted Airspeed Unreliable values to match QRH update of 28 April 2022.
  • App version number shown on settings page.
  • Other small app improvements.
  • Updated user manual.

v1.3.2 (2-5-2022) 

  • Minor bug fix.

v1.3.3 (26-10-2022)

  • Fixed a landing distance bug for certain non-normal aircraft statuses in combination with braking action Medium to Good or less - and - NO REV.

v1.3.4 (2-11-2022)

  • Fixed issue with UNRELIABLE AIRSPEED pitch power table, which was present from v1.3.3.

v1.4 (16-1-2023)

  • Added Gear Down Rate of Climb Available.
  • Replaced the exchange symbol in the Main output box with backward and forward arrows. So now backward and forward scrolling is available.
  • Added checkboxes behind ICING (and if available WIFI) on the LCLW view to incorporate these weight adjustments in the displayed LCLW values.
  • Minor app improvements.
  • Updated user manual.

v1.5 (Expected 18-2-2023)

  • Added British Airways 777 fleet. To select British Airways go to the Settings page.
  • Added Airline selector on the Settings page.
  • Added What’s New on first start-up of a new version.
  • Added pop-up to rate the app in the App Store.
  • Added derived TAT to the Gear Down Landing Rate of Climb Available view. 
  • Added a +15% check box to the Non-Normal Calculated Landing Distance view. 
  • British Airways: Added AUTOLAND check box to the Calculated Landing Distance view. 
  • 737: previously QNH change had no effect on landing distances. This now has been changed.
  • Minor app improvements.
  • Updated User Manual.

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