Knot

The knot is a unit of speed equal to one nautical mile (1.852 km) per hour, approximately 1.151 mph.

Source: Pilot's Handbook of Aeronautical Knowledge (definition from the FAA-H-8083-25B, 2016; current: FAA-H-8083-25C, 2023, with the October 2025 addendum).

Glossary last updated 2024-07-25.

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