Magnetic field calculator - Results

IGRF-12 (2015) Model Results

  • Latitude: 47.6062° North
  • Longitude: 122.3321° West
  • Date: 2018-01-22
D (°) I (°) H (nT) Z (nT) F (nT) X (nT) Y (nT)
15.707 69.087 19,105 49,999 53,525 18,392 5,172

Annual change
D ('/y) I ('/y) H (nT/y) Z (nT/y) F (nT/y) X (nT/y) Y (nT/y)
-8.3 -1.3 -20.0 -110.0 -110.0 -6.0 -50.0

Note that the units for the annual change of D and I are minutes/year and H,Z,F,X,Y are nanoTesla/year.

For information about the magnetic components, please visit the Magnetic components page.

Return to the Magnetic Field Calculator to calculate a new magnetic declination.

This calculator may be used to calculate values of all seven magnetic components (D, I, H, Z, F, X, Y) for a specified location and date based on the International Geomagnetic Reference Field model.