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What factor does a pilot use to change knots to miles per hour?

  1. Multiply the knots by 1.15
  2. Multiply the knots by 0.87
  3. Multiply the knots by 1.5
  4. Divide the knots by 1.15
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Correct answer: Multiply the knots by 1.15

A nautical mile is longer than a statute mile, so the conversion factor is 1.15.

Source: Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25C), Chapter 16: Navigation — Basic Calculations, page 398

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Questions last reviewed: 18 October 2026