Conversion Formulas:
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The calculator converts speed from knots (nautical miles per hour) to miles per hour (mph) and calculates the time required to cover a specified distance. This is useful for aviation, maritime, and meteorological applications.
The calculator uses these formulas:
Where:
Explanation: The calculator automatically adjusts calculations based on whether distance is entered in nautical miles or statute miles.
Details: Accurate speed conversion is crucial for navigation, flight planning, weather reporting, and understanding speed limits or performance specifications that may use different units.
Tips: Enter speed in knots, distance in either nautical miles or statute miles, and select the appropriate distance unit. All values must be positive numbers.
Q1: Why are different speed units used?
A: Knots are used in aviation and maritime because they relate directly to nautical miles and the Earth's latitude/longitude system.
Q2: How accurate is the conversion factor?
A: The conversion factor (1.150779) is exact, based on the international definition of nautical mile and mile.
Q3: When should I use nautical miles vs statute miles?
A: Use nautical miles for marine and aviation navigation, statute miles for land-based distances.
Q4: Can I calculate time for mph input?
A: This calculator is designed for knots input. For mph input, use a different calculator or divide distance by speed directly.
Q5: Why does time calculation consider the distance unit?
A: Because speed in knots is equivalent to nautical miles per hour - the units must match for correct time calculation.