Converting from Knot (kn) to Speed of Sound in Air (ssia)

What is Knot (kn)

The knot, abbreviated as "kn," is a unit of speed used primarily in maritime and aviation contexts. One knot is defined as one nautical mile per hour. It is a useful measure when traveling over the ocean or through the air, as it relates directly to the distance covered in nautical miles, which is helpful when navigating the globe.

What is Speed of Sound in Air (ssia)

The speed of sound in air, abbreviated as "ssia," refers to how fast sound waves travel through the air. At sea level and at a temperature of 20 degrees Celsius, the speed of sound is approximately 343 meters per second, which translates to about 1235 kilometers per hour. This speed can fluctuate based on factors such as temperature, humidity, and altitude.

Conversion Formulas

To convert between knots and the speed of sound in air, you can use the following formulas:

1. From Knot to Speed of Sound in Air:

   ssia=kn×0.001511782

2. From Speed of Sound in Air to Knot:

   kn=ssia×661.4708

Examples

Here are a few examples to illustrate the conversion:

• If you have a speed of 3 knots:

  ssia=3(kn)×0.001511782=0.004535347(ssia)

• If you encounter a speed of 17 knots:

  ssia=17(kn)×0.001511782=0.0257003(ssia)

• For a speed of 14 knots:

  ssia=14(kn)×0.001511782=0.02116495(ssia)

Now, converting back:

• For a speed of 0.004535347 ssia:

  kn=0.004535347(ssia)×661.4708=3(kn)

• A speed of 0.0257003 ssia becomes:

  kn=0.0257003(ssia)×661.4708=17(kn)

• For 0.02116495 ssia:

  kn=0.02116495(ssia)×661.4708=14(kn)