Convert 21 km to Nautical miles

Converting kilometers to nautical miles can be essential for navigators, sailors, and aviation professionals. This guide will help you quickly convert 21 kilometers into nautical miles using a straightforward method.

km Definition

A kilometer (km) is a unit of distance in the metric system, equal to 1,000 meters. It is commonly used to measure distances in road travel, athletics, and geographical contexts.

Nautical miles Definition

A nautical mile is a unit of measurement used primarily in maritime and air navigation. It is based on the circumference of the Earth and is equal to one minute of latitude, approximately 1.852 kilometers.

How to Convert 21 km to Nautical miles

To convert kilometers to nautical miles, you can use the formula: nautical miles = kilometers ÷ 1.852. For 21 kilometers, the calculation would be:

21 km ÷ 1.852 ≈ 11.34 nautical miles.

Therefore, 21 kilometers is approximately 11.34 nautical miles.

FAQs

What is the relationship between kilometers and nautical miles?

One nautical mile is equivalent to approximately 1.852 kilometers. This relationship is essential for navigation across the globe.

Why are nautical miles used in navigation?

Nautical miles are used in navigation because they relate directly to the Earth is geometry, making it easier for navigators to calculate distances based on latitude and longitude.

Can I convert nautical miles back to kilometers?

Yes, to convert nautical miles back to kilometers, you can use the formula: kilometers = nautical miles x 1.852.