WGS-84 Calculator

Main window
WGS-84 Calculator is used to calculate geodetic distance and azimuth between two points (latitude and longitude). In addition, it can calculate a new point from origin using the given azimuth and distance. The latest version can calculate a new point between origin and destination.

Versions 2.11+ includes IGRF magnetic model, program calculates magnetic declination for both points and gives results also as magnetic bearings. Declination is calculated using altitude 0.0 m MSL and selected date. Magnetic bearing could be used also when calculationg a new point.
Versions 2.14+ includes WMM (World Magnetic Model) magnetic models.
Both magnetic models can be used for dates between 2010 and 2030. 

Lat/long values can be inserted using three different formats:

Calculations are based on WGS-84 (World Geodetic System - 1984) co-ordinate system, which is used for example in aviation. Result can be copied to Windows clipboard and then used in other Windows programs.

The WGS-84 Calculator program is very easy to use. 

WGS-84 Calculator requirements

  • Operating system Windows 2000 / XP/ 2003 / Vista / 7 / 8 / 10 / 11

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Version history

  • Version 2.14.0.22  23 Dec 2024
    • Magnetic model IGRF-14 added
    • IGRF-14 implemented for 2010.0 - 2030.0 dates, used date can be selected
    • IGRF-13 Correction of coefficient rounding for 2020 (Feb 2020)
    • Changed IGRF-12 and IGRF-13 models also for dates 2010.0 +
    • Details about IGRF models NCEI
    • WMM (World Magnetic Model) magnetic models added for 2010.0 - 2030.0
    • WMM models included are WMM2010, WMM2015, WMM2020 and WMM2025
    • Details about WMM models NCEI
    • Setup and program itself have Digital Signature
    •  Setup in only English
    • Setup possible without admin rights if not installed to Program Files directory
  • Version 2.13.0.19  21 Feb 2020
    • New function: Calculate point between Origin and Destination.
    • Given distance for a new point can be negative. In that case azimuth used in calculation would be Azm - 180.0°
    • One example of point between calculations here
    Version 2.12.0.18  8 Jan 2020
    • Corrected N/S and E/W buttons events
    • Changed proposed program installation directory for setup program
  • Version 2.12.0.17  7 Jan 2020
    • Magnetic model IGRF-13 added
    • IGRF-13 implemented for 2000.0 - 2025.0 dates, used date can be selected
    • Change of co-ordinate format also using a speedbutton
    • Each point can be send to also to Bing Maps
    • Setup possible without admin rights
  • Version 2.11.0.16  2 May 2015
    • Magnetic bearings using IGRF-12 model
    • IGRF-12 implemented for 2000.0 - 2020.0 dates, used date can be selected
    • More information about IGRF-12 see IAGA
    • Change of co-ordinate format using hot keys (Ctrl-S, Ctrl-M and Ctrl-D)
    • Each point can be sent to Google Maps
  • Version 1.10.0.14  23 Jul 2008
    • Distance also as feet (ft) or international miles (mi)
  • Version 1.9.0.13  20 Apr 2007
    • Small layout changes
    • Co-ordinate format can be selected from three different format (DD:MM:SS.ssss, DD:MM.mmmmmm or DD.dddddddd).
  • Version 1.8.0.12  16 Dec 2003
    • Small layout changes
    • Setup in English/Finnish
  • Version 1.7.0.11  14 Feb 2002
    • Results can be copied to Windows clipboard
    • Setup program
  • Version 1.6.0.4  14 Jun 1998
    • Public release