True North - Find Your Declination

Compliments of NOAA - Magnetic Declination Estimated Value

Declination is calculated using the most recent World Magnetic Model or the International Geomagnetic Reference Field model. For 1590 to 1900 the calculator is based on tgufm1 model. A smooth transition from gufm1 to IGRF was imposed from 1890 to 1900. Declination results are typically accurate to 30 minutes of arc, but environmental factors can cause magnetic field disturbances.

Once you locate true north you can determine true south. Orientating your home correctly can have a major effect on solar efficiencies.

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  • True North - +/-Degrees From Magnetic
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