Calculadora de Milha Náutica
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
1 nmi = 1.852 km; nós = nmi / h
About this calculator
The Nautical Mile Calculator converts distances between nautical miles (nmi) and kilometers (km), and also calculates speed in knots. The nautical mile is a unit of measurement used mainly in maritime and air navigation, equivalent to 1.852 meters. A knot represents one nautical mile per hour. The tool uses the formula: 1 nmi = 1.852 km and speed (knots) = distance in nmi divided by time in hours.
To use the calculator, simply enter the value in nautical miles or kilometers to convert between these units. You can also calculate speed in knots by entering the distance traveled (in nautical miles) and the time taken (in hours). The result is displayed instantly, making it easier to plan routes and estimate travel times.
This tool is useful for navigation professionals, pilots, sailors, and students who work with nautical charts, flight plans, or navigation exercises. It avoids manual conversion errors and speeds up calculations in situations requiring precision, such as navigation exams or daily onboard tasks.
Cautions: remember that the nautical mile is different from the statute mile (1.609 km). Always verify that the correct unit is being used. Also, the speed calculation in knots assumes time in hours; if time is given in minutes, convert to hours before using the calculator.
Frequently asked questions
What is the difference between a nautical mile and a statute mile?
A nautical mile equals 1.852 meters, used in navigation, while a statute mile is 1.609 meters. This calculator uses nautical miles.
How do I convert knots to km/h?
Multiply the knot value by 1.852 to get km/h. For example, 10 knots equals 18.52 km/h.
Can I use this calculator for aviation?
Yes, nautical miles and knots are standard in aviation. The tool is suitable for pilots and flight plans.
What does 'nmi' stand for?
Nmi stands for nautical mile. It is the unit used in this calculator.
How do I calculate speed in knots if time is in minutes?
Convert minutes to hours by dividing by 60. For example, 30 minutes = 0.5 hour. Then enter into the calculator.