Admiralty Magnetic Variation Chart 5374: The World - 2025 and Annual Rates of Change Folds:Folded Updated depth surveys have been

Updated depth surveys have been included where applicable

This parallel rule is a favourite among sailors

Carteret (1:22

The Weems & Plath 24" Parallel Rule is a robust and reliable navigation tool designed for professional and commercial use

Inchcolm (1 : 15

Admiralty Magnetic Variation Chart 5374: The World - 2025 and Annual Rates of Change Folds:Folded Updated depth surveys have beenAn official Admiralty Magnetic Variation Chart, printed on demand on quality, watermarked chart paper directly from the UKHO's latest digital files. Each chart includes the most recent magnetic variation data and annual rates of change for accurate compass correction and navigation. About Admiralty Magnetic Variation Charts Admiralty Magnetic Variation Charts are essential reference tools produced by the UKHO showing the angular difference between