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IGRF (12th Generation, revised 2014) Synthesis Form

Please enter your name and email address:


This is an IGRF spot value request form:

Coordinate Type: Geodetic. Geocentric.

Date : in decimal years

Altitude : in kilometres (Radial Distance if Geocentric)

Name of Location : (optional)

Position Coordinates: In Degrees and Minutes In Decimal Degrees

LATITUDE (degrees negative for south) degrees, minutes (degrees & minutes option only)

LONGITUDE (degrees negative for west) degrees, minutes (degrees & minutes option only)

Total Intensity (F) Declination (D) Inclination (I) Horizontal Intensity (H)

North Component (X) East Component (Y) Vertical Component (Z)

Secular Variation (rate of change)

Include a Map of the Location : NO YES

This option takes approx. 20 seconds to produce the map, plus the small transfer time sending the image (file size 5 K).


To submit the query, press this button: .

To clear the form, press this button: .