# Convert 321 kilometers per hour to knots

How many knots are 321 kilometers per hour?

kilometers per hour (km/h)
321 kilometers per hour = 173.326 knots

## Precise decimal and fraction answers

The conversion in knots rounded to six significant decimal places is 321 km/h = 173.326134 kn. The precise fraction answer is 173 151/463 kn.

### Decimal Precision

Conversion from one to ten decimal places

• 321 km/h = 173.3 kn
• 321 km/h = 173.33 kn
• 321 km/h = 173.326 kn
• 321 km/h = 173.3261 kn
• 321 km/h = 173.32613 kn
• 321 km/h = 173.326134 kn
• 321 km/h = 173.3261339 kn
• 321 km/h = 173.32613391 kn
• 321 km/h = 173.326133909 kn
• 321 km/h = 173.3261339093 kn

## How many knots is a kilometer per hour?

A kilometer per hour is slower than a knot. 0.54 knots is the same velocity as one kilometer per hour. A kilometer per hour is 54.00% the velocity a knot. An object moving at a knot is 85.2% faster than an object traveling at one kilometer per hour.

## Kilometers per hour to knots conversion factor and formulas

Formula

The conversion factor between kilometers per hour and knots is 1.852. This represents the ratio of kilometers per hour per one knot. To calculate the value in knots, we can either divide by the conversion factor or multiply by its inverse.

### Division

To convert from kilometers per hour to knots, divide kilometers per hour by 1.852.
The formula is expressed as:
km/h ÷ 1.852 = kn

### Multiplication

Alternatively we can multiply by the inverse conversion factor to get the same result.
The inverse of 1.852 is 1/1.852 or 0.54. To convert from kilometers per hour to knots, multiply kilometers per hour by 0.54.
The formula is expressed as:
km/h × 0.54 = kn

To convert 321 kilometers per hour to knots, divide 321 kilometers per hour by 1.852.
321 km/h ÷ 1.852 = 173.326 kn

## How fast are 321 kilometers per hour?

Real world scale examples to visualize the velocity of 321 kilometers per hour / 173.326 knots

• 2.85 times the typical automobile speed on a highway (70 mph)
• 100% of the typical speed of modern high speed train (200 mph)
• 36% of the typical cruising speed of a passenger jet (560 mph)

Converting kilometers per hour to knots is a conversion between units from separate unit systems - kilometers per hour are metric (SI) defined units while knots are US Customary / UK Imperial .

SI Unit

Within the SI (metric) system of measurement, a kilometer per hour (km/h) is the distance traveled in one hour as measured in kilometers (1,000 meters). It is commonly used as measurement of velocity over geographic distances. Kilometers per hour are commonly used to measure vehicle speed and speed limits. The official SI symbol is km/h, however kph and km/hr are also used.

Customary/Imperial Unit

Knots are a measure of speed over long geographic distances most often associated with the maritime and aviation communities. A knot is a measurement of distance traveled in nautical miles in one hour. The origins of the knot derive from practice of mariners throwing a wooden chip log attached to a line off the stern of a ship. As the ship traveled forward, the line spooled out and the number of physical knots on the line where counted over a 30 second period to determine boat speed. The symbol for knots is either kn or kt.

## Reverse this conversion

Convert from knots to kilometers per hour instead.

## 321 kilometers per hour to other speed units

### Metric

• 321 km/h = 321 km/h

### Imperial/U.S.

• 321 km/h = 199.46 mph
• 321 km/h = 173.326 kn

## References and Citations

1. International Bureau of Weights and Measures (BIPM) The International System of Units (SI)
2. National Institute of Standards and Technology (NIST) General Tables of Units of Measurement

## Decimal conversions for 321 km/h to kn

km/h kn
321.01 km/h 173.332 kn
321.02 km/h 173.337 kn
321.03 km/h 173.342 kn
321.04 km/h 173.348 kn
321.05 km/h 173.353 kn
321.06 km/h 173.359 kn
321.07 km/h 173.364 kn
321.08 km/h 173.369 kn
321.09 km/h 173.375 kn
321.1 km/h 173.38 kn
321.11 km/h 173.386 kn
321.12 km/h 173.391 kn
321.13 km/h 173.396 kn
321.14 km/h 173.402 kn
321.15 km/h 173.407 kn
321.16 km/h 173.413 kn
321.17 km/h 173.418 kn
321.18 km/h 173.423 kn
321.19 km/h 173.429 kn
321.2 km/h 173.434 kn
321.21 km/h 173.44 kn
321.22 km/h 173.445 kn
321.23 km/h 173.45 kn
321.24 km/h 173.456 kn
321.25 km/h 173.461 kn
321.26 km/h 173.467 kn
321.27 km/h 173.472 kn
321.28 km/h 173.477 kn
321.29 km/h 173.483 kn
321.3 km/h 173.488 kn
321.31 km/h 173.494 kn
321.32 km/h 173.499 kn
321.33 km/h 173.504 kn
321.34 km/h 173.51 kn
321.35 km/h 173.515 kn
321.36 km/h 173.521 kn
321.37 km/h 173.526 kn
321.38 km/h 173.531 kn
321.39 km/h 173.537 kn
321.4 km/h 173.542 kn
321.41 km/h 173.548 kn
321.42 km/h 173.553 kn
321.43 km/h 173.558 kn
321.44 km/h 173.564 kn
321.45 km/h 173.569 kn
321.46 km/h 173.575 kn
321.47 km/h 173.58 kn
321.48 km/h 173.585 kn
321.49 km/h 173.591 kn
321.5 km/h 173.596 kn
km/h kn
321.51 km/h 173.602 kn
321.52 km/h 173.607 kn
321.53 km/h 173.612 kn
321.54 km/h 173.618 kn
321.55 km/h 173.623 kn
321.56 km/h 173.629 kn
321.57 km/h 173.634 kn
321.58 km/h 173.639 kn
321.59 km/h 173.645 kn
321.6 km/h 173.65 kn
321.61 km/h 173.656 kn
321.62 km/h 173.661 kn
321.63 km/h 173.666 kn
321.64 km/h 173.672 kn
321.65 km/h 173.677 kn
321.66 km/h 173.683 kn
321.67 km/h 173.688 kn
321.68 km/h 173.693 kn
321.69 km/h 173.699 kn
321.7 km/h 173.704 kn
321.71 km/h 173.71 kn
321.72 km/h 173.715 kn
321.73 km/h 173.72 kn
321.74 km/h 173.726 kn
321.75 km/h 173.731 kn
321.76 km/h 173.737 kn
321.77 km/h 173.742 kn
321.78 km/h 173.747 kn
321.79 km/h 173.753 kn
321.8 km/h 173.758 kn
321.81 km/h 173.763 kn
321.82 km/h 173.769 kn
321.83 km/h 173.774 kn
321.84 km/h 173.78 kn
321.85 km/h 173.785 kn
321.86 km/h 173.79 kn
321.87 km/h 173.796 kn
321.88 km/h 173.801 kn
321.89 km/h 173.807 kn
321.9 km/h 173.812 kn
321.91 km/h 173.817 kn
321.92 km/h 173.823 kn
321.93 km/h 173.828 kn
321.94 km/h 173.834 kn
321.95 km/h 173.839 kn
321.96 km/h 173.844 kn
321.97 km/h 173.85 kn
321.98 km/h 173.855 kn
321.99 km/h 173.861 kn