Use a compass without losing the reference frame

Direct answer

A compass bearing must be labelled as true, magnetic, or compass. Convert between them by applying variation and deviation with the correct sign, then use hand-bearing position lines on the chart to check or fix your position.

Best for

True, magnetic, compass, variation, deviation

Includes

Rose, deviation table, position-line fix

Practice mode

Workbench, converter, quiz

Cost

Free, no login required