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Nautical Mile Calculator

Convert nautical miles to other units and calculate navigation distances

Nautical Mile Converter & Calculator

Calculation Mode

Conversion Results

0.0000
Nautical Miles
nmi
0.0000
Statute Miles
mi
0.0000
Kilometers
km
0.00
Meters
m
0.00
Feet
ft
0.00
Yards
yd

Conversion Factors: 1 nautical mile = 1.15078 statute miles = 1.852 kilometers = 1852 meters

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Quick Conversions

1 Nautical Mile1.15078 miles
1 Nautical Mile1.852 km
1 Nautical Mile1852 meters
1 Nautical Mile6076 feet
1 Knot1 nmi/hour

Navigation Facts

Nautical miles are based on Earth's circumference

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1 nautical mile = 1 minute of latitude

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Used in aviation and marine navigation

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More accurate for long-distance navigation

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International standard for maritime distances

Understanding Nautical Miles

What is a Nautical Mile?

A nautical mile is a unit of distance used in air and marine navigation. It's based on the circumference of the Earth and equals one minute (1/60 of a degree) of latitude.

Key Conversions

1 Nautical Mile =

1.15078 statute miles

1.852 kilometers

1852 meters

6076 feet

Why Use Nautical Miles?

  • Directly related to Earth's geometry
  • Simplifies navigation calculations
  • Standard in aviation and maritime industries
  • More accurate for long-distance travel

Knots and Speed

What is a Knot?

A knot is a unit of speed equal to one nautical mile per hour. It's the standard speed measurement in aviation and marine navigation.

Speed Calculations:

• Distance = Speed × Time

• Speed = Distance ÷ Time

• Time = Distance ÷ Speed

Historical Origin:

The term "knot" comes from the historical method of measuring ship speed using a rope with knots at regular intervals thrown overboard.

Frequently Asked Questions

Why is a nautical mile longer than a statute mile?

Nautical miles are based on Earth's circumference and latitude lines, making them about 15% longer than statute miles. This makes them more accurate for navigation across the Earth's curved surface.

How do I convert knots to mph?

To convert knots to miles per hour, multiply by 1.15078. For example, 20 knots = 20 × 1.15078 = 23.02 mph. This is because knots are based on nautical miles per hour.

When should I use nautical miles vs. regular miles?

Use nautical miles for aviation, marine navigation, and meteorology. Use statute miles for land-based travel and everyday distance measurements. Nautical miles are more accurate for long-distance navigation.

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