Magnetic Declination Calculator

Enter your details below and get instant results

Enter the latitude to calculate
Enter the longitude to calculate
Enter the year to calculate

Magnetic Declination Calculator

Our Magnetic Declination Calculator estimates the angle between true north and magnetic north for any location. Essential for accurate compass navigation, orienteering, and adjusting bearings for magnetic variation.

How to Use

  • Enter your latitude and longitude
  • Select the year
  • Click Calculate to see the magnetic declination and whether it is east or west
Technology 5 views Updated: Jul 2026

Formula

Estimated using World Magnetic Model approximation

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