Miles Per Day to Knots Converter (mi/day to kt)
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Convert Knots to Miles Per Day (kt to mi/day) ▶

Conversion Table

miles per day to knots
mi/daykt
1 mi/day 0.0362 kt
2 mi/day 0.0724 kt
3 mi/day 0.1086 kt
4 mi/day 0.1448 kt
5 mi/day 0.181 kt
6 mi/day 0.2172 kt
7 mi/day 0.2535 kt
8 mi/day 0.2897 kt
9 mi/day 0.3259 kt
10 mi/day 0.3621 kt
11 mi/day 0.3983 kt
12 mi/day 0.4345 kt
13 mi/day 0.4707 kt
14 mi/day 0.5069 kt
15 mi/day 0.5431 kt
16 mi/day 0.5793 kt
17 mi/day 0.6155 kt
18 mi/day 0.6517 kt
19 mi/day 0.6879 kt
20 mi/day 0.7241 kt

How to convert

1 mile per day (mi/day) = 0.036207343 knot (kt). Mile Per Day (mi/day) is a unit of Speed used in Standard system. Knot (kt) is a unit of Speed used in Standard system.

Miles Per Day

Definition of Miles Per Day

Miles per day (mi/d) is a unit of speed that measures how fast something is moving in terms of miles per unit of time. It is commonly used in the United States, the United Kingdom, and some other countries that use the US Standard system of measurement or have close historical ties with them. It is often used for measuring the average speed or distance traveled by an object or phenomenon over a period of time that is measured in days or longer.

One mile per day is equal to 0.0416666667 miles per hour, or 0.0185185185 meters per second. It can also be converted to other units of speed, such as kilometers per hour, feet per second, or knots, by using appropriate conversion factors.

How to Convert Miles Per Day

To convert miles per day to other units of speed, we need to multiply or divide by the corresponding conversion factors. For example, to convert miles per day to kilometers per hour, we need to multiply by 1.609344, since there are 1.609344 kilometers in one mile. To convert miles per day to meters per second, we need to multiply by 0.018518518518519, since there are 0.018518518518519 meters in one mile.

Here are some examples of how to convert miles per day to other units of length in the US Standard system and the SI system:

  • To convert 10 mi/d to kilometers per hour (km/h), we multiply by 1.609344: 10 mi/d x 1.609344 = 16.09344 km/h
  • To convert 20 mi/d to feet per second (fps), we multiply by 0.05787037037037, since there are 0.05787037037037 feet in one meter: 20 mi/d x 0.05787037037037 = 1.157407407407 fps
  • To convert 30 mi/d to knots (kn), we multiply by 0.03626111111, since there are 0.0362611111 nautical miles in one mile: 30 mi/d x 0.0362611111 = 1.08783333 kn
  • To convert 40 mi/d to meters per second (m/s), we multiply by 0.018518518518519: 40 mi/d x 0.018518518518519 = 0.740740740741 m/s
  • To convert 50 mi/d to meters per minute (m/min), we multiply by 1.11111, since there are 1.11111 minutes in one hour: 50 mi/d x 1.11111 = 55.555555556 m/min
  • To convert 60 mi/d to centimeters per second (cm/s), we multiply by 100, since there are 100 centimeters in one meter, and multiply by 0.018518518518519: 60 mi/d x 100 x 0.018518518518519 = 111.11111 cm/s

Where Miles Per Day Are Used

Miles per day are mainly used for measuring the average speed or distance traveled by an object or phenomenon over a period of time that is measured in days or longer. They are often used in fields such as travel, fitness, sports, and geography, where the speed or distance traveled by an object or phenomenon is measured in terms of miles per unit of time.

For example, a person may travel an average of 100 mi/d on a road trip across a country, which means that they cover an average distance of 100 miles in one day. A runner may run an average of 5 mi/d as part of their training routine, which means that they run a distance of 5 miles in one day. A planet may have an orbital velocity of thousands of miles per day, which means that it covers thousands of miles along its orbit in one day.

Miles per day are also used in some other fields where the speed or distance traveled by an object or phenomenon is measured in terms of miles per unit of time.

History of Miles Per Day

The origin of miles per day as a unit of speed can be traced back to the development of the US Standard system and the mile as a unit of length in the late eighteenth century. The mile was defined as one thousand six hundred and nine meters (or eight furlongs) based on the English statute mile.

The term mile first appeared in English in the late fourteenth century, but it was not until later in the early nineteenth century that the use of miles per day became more common; before that, other units such as miles per hour or leagues per day were preferred for expressing speed.

Miles per day have been used ever since as a standard unit of speed for measuring the average speed or distance traveled by an object or phenomenon over a period of time that is measured in days or longer. They have also been adopted by some international organizations and conventions, such as the International System of Units and the International Astronomical Union.

Example Conversions of Miles Per Day to Other Units

Here are some examples of how to convert miles per day to other units of speed, using the conversion factors given above:

  • To convert 100 mi/d to kilometers per hour, we multiply by 1.609344: 100 mi/d x 1.609344 = 160.9344 km/h
  • To convert 200 mi/d to feet per second, we multiply by 0.05787037037037: 200 mi/d x 0.05787037037037 = 11.574074074074 fps
  • To convert 300 mi/d to knots, we multiply by 0.0362611111: 300 mi/d x 0.0362611111 = 10.8783333 kn
  • To convert 400 mi/d to meters per second, we multiply by 0.018518518518519: 400 mi/d x 0.018518518518519 = 7.407407407407 m/s
  • To convert 500 mi/d to meters per minute, we multiply by 1.11111: 500 mi/d x 1.11111 = 555.55556 m/min
  • To convert 600 mi/d to centimeters per second, we multiply by 100 and multiply by 0.018518518518519: 600 mi/d x 100 x 0.018518518518519 = 1111.1111 cm/s
  • To convert 700 mi/d to millimeters per minute, we multiply by 1000, since there are 1000 millimeters in one meter, and multiply by 1.11111: 700 mi/d x 1000 x 1.11111 = 777777.77778 mm/min
Miles per day also can be marked as mile/day.

Knots

Definition of Knots

Knots, commonly denoted kn, is a unit of speed equal to one nautical mile per hour, exactly 1.852 km/h (approximately 1.151 mph or 0.514 m/s). It is the standard unit of speed used in meteorology, and in maritime and air navigation. A vessel travelling at 1 kn along a meridian travels approximately one minute of geographic latitude in one hour.

How to Convert Knots

To convert knots to other units of speed, we need to multiply or divide by the corresponding conversion factors. For example, to convert knots to kilometers per hour, we need to multiply by 1.852, since there are 1.852 kilometers in one nautical mile. To convert knots to meters per second, we need to divide by 3.6, since there are 3.6 seconds in one hour.

Here are some examples of how to convert knots to other units of length in the US Standard system and the SI system:

  • To convert 10 kn to kilometers per hour (km/h), we multiply by 1.852: 10 kn x 1.852 = 18.52 km/h
  • To convert 20 kn to miles per hour (mph), we multiply by 1.1507794480235, since there are 1.1507794480235 miles in one nautical mile: 20 kn x 1.1507794480235 = 23.01558896047 mph
  • To convert 30 kn to feet per second (fps), we multiply by 1.6878098571012, since there are 1.6878098571012 feet in one meter: 30 kn x 1.6878098571012 = 50.634295713036 fps
  • To convert 40 kn to meters per second (m/s), we divide by 3.6: 40 kn / 3.6 = 11.111111111111 m/s
  • To convert 50 kn to meters per minute (m/min), we multiply by 60, since there are 60 minutes in one hour: 50 kn x 60 = 3,000 m/min
  • To convert 60 kn to centimeters per second (cm/s), we multiply by 100, since there are 100 centimeters in one meter, and divide by 3.6: 60 kn x 100 / 3.6 = 5,000 cm/s

Where Knots Are Used

Knots are used in various fields of science and technology where the speed and direction of movement of objects or phenomena are measured or applied in relation to water or air currents. For example:

  • In meteorology, knots are used to measure wind speed and direction, as well as the speed and direction of storms, hurricanes, and other weather phenomena.
  • In maritime navigation, knots are used to measure the speed and direction of ships, boats, submarines, and other watercraft, as well as the speed and direction of ocean currents, tides, and waves.
  • In air navigation, knots are used to measure the speed and direction of aircraft, helicopters, rockets, satellites, and other aerospace vehicles, as well as the speed and direction of air currents, jet streams, and wind shear.

History of Knots

The origin of knots as a unit of speed can be traced back to the ancient practice of measuring the speed of ships by using a device called a chip log or log-line. This device consisted of a wooden board attached to a rope with knots tied at regular intervals along its length. The board was thrown overboard from the stern of the ship and allowed to drag behind it while the rope was let out for a fixed amount of time (usually measured by a sandglass). The number of knots that passed over the rail of the ship during that time indicated the speed of the ship in nautical miles per hour.

The first recorded use of this method was by the Phoenicians around the second millennium BCE. The device was later improved and standardized by various civilizations such as the Greeks, Romans, Arabs, Vikings, Chinese, and Europeans. The length of the nautical mile and the spacing of the knots varied from place to place and from time to time until they were fixed by international agreement in the late nineteenth century.

The term knot was derived from the Old English word cnotta meaning “a knot”. It was first used as a unit of speed by English sailors in the early seventeenth century.

Example Conversions of Knots to Other Units

Here are some examples of how to convert knots to other units of speed, using the conversion factors given above:

  • To convert 100 kn to kilometers per hour, we multiply by 1.852: 100 kn x 1.852 = 185.2 km/h
  • To convert 200 kn to miles per hour, we multiply by 1.1507794480235: 200 kn x 1.1507794480235 = 230.15589792094 mph
  • To convert 300 kn to feet per second, we multiply by 1.6878098571012: 300 kn x 1.6878098571012 = 506.34295713011 fps
  • To convert 400 kn to meters per second, we divide by 3.6: 400 kn / 3.6 = 111.11111111111 m/s
  • To convert 500 kn to meters per minute, we multiply by 60: 500 kn x 60 = 30,000 m/min
  • To convert 600 kn to centimeters per second, we multiply by 100 and divide by 3.6: 600 kn x 100 / 3.6 = 50,000 cm/s
  • To convert 700 kn to millimeters per minute, we multiply by 1000, since there are 1000 millimeters in one meter, and multiply by 60: 700 kn x 1000 x 60 = 42,000,000 mm/min
Knots can be also marked as kn. 1 international knot = 1 nautical mile per hour.



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