Feet to Parsecs Converter (ft to pc)
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Convert Parsecs to Feet (pc to ft) ▶

Conversion Table

feet to parsecs
ftpc
100000000000000000 ft 0.9878 pc
200000000000000000 ft 1.9756 pc
300000000000000000 ft 2.9634 pc
400000000000000000 ft 3.9512 pc
500000000000000000 ft 4.939 pc
600000000000000000 ft 5.9267 pc
700000000000000000 ft 6.9145 pc
800000000000000000 ft 7.9023 pc
900000000000000000 ft 8.8901 pc
1000000000000000000 ft 9.8779 pc
1100000000000000000 ft 10.8657 pc
1200000000000000000 ft 11.8535 pc
1300000000000000000 ft 12.8413 pc
1400000000000000000 ft 13.8291 pc
1500000000000000000 ft 14.8169 pc
1600000000000000000 ft 15.8046 pc
1700000000000000000 ft 16.7924 pc
1800000000000000000 ft 17.7802 pc
1900000000000000000 ft 18.768 pc
2000000000000000000 ft 19.7558 pc

How to convert

1 foot (ft) = 9.8779E-18 parsec (pc). Foot (ft) is a unit of Length used in Standard system. Parsec (pc) is a unit of Length used in Metric system.

Foot: A Unit of Length Used in the US Customary System

The foot (ft) is a unit of length used in the US customary system, which is one of the systems of measurement used in the United States and some other countries. The foot is equal to 12 inches or 0.3048 meter. The foot is also a derived unit in the imperial system, which is the official system of measurement for the United Kingdom and some other Commonwealth countries. The symbol for foot is ft or ′. The foot is used for measuring short distances and dimensions, such as the height of a person or the width of a door. The foot is named after the human foot, which was used as a standard of measurement in ancient times. In this article, we will explore the definition, history, usage and conversion of the foot as a unit of length.

Definition of Foot

The foot is a unit of length that is equal to 12 inches. It is defined as 0.3048 meter by international agreement in 1959. One inch is equal to 25.4 millimeters.

The definition of the foot has changed over time, as different standards and methods of measurement were developed by various countries and organizations. The current definition of the foot as based on the meter was agreed upon by an international treaty in 1959.

History of Foot

The origin of the foot as a unit of length can be traced back to ancient times, when it was used as a measure of length based on the human body. The word foot comes from the Old English word fot, which was derived from the Proto-Germanic word fotuz. It referred to the length of a human foot, which was about 280 millimeters.

The foot was also used as a measure of length by other civilizations, such as the Romans, who used it as one-sixteenth of a Roman pace or passus. The Roman foot was about 296 millimeters.

The foot was adopted by other countries that followed the English system of measurement, such as the United States and Canada. It was also incorporated into the imperial system, which was established by an act of Parliament in 1824. The imperial system was based on seven base units that could be derived from natural and traditional units. The foot remained as a derived unit in the imperial system, but it was no longer recommended for use in scientific and technical fields.

Where Foot is Used

The foot is a unit of length that is used for measuring short distances and dimensions, such as the height of a person or the width of a door.

The foot is commonly used in everyday life, especially in countries that follow the US customary system. Some examples are:

  • Measuring the size and shape of objects and tools.
  • The construction industry uses foot as a unit of measurement for various purposes, such as planning, designing, building, and estimating.
  • The aviation industry uses foot as a unit of measurement for altitude (the height above sea level) and flight level.
  • The surveying industry uses foot as a unit of measurement for land area and distance.
  • The construction industry uses foot as a unit of measurement for various purposes, such as planning, designing, building, and estimating materials and costs.

    Foot Equivalents in Other Units and Scales

    The foot (ft) is a unit of length used in the US customary system, which is one of the systems of measurement used in the United States and some other countries. The foot is equal to 12 inches or 0.3048 meter. The foot is also a derived unit in the imperial system, which is the official system of measurement for the United Kingdom and some other Commonwealth countries. The symbol for foot is ft or ′. The foot is used for measuring short distances and dimensions, such as the height of a person or the width of a door. The foot is named after the human foot, which was used as a standard of measurement in ancient times.

    In this article, we will explore how to convert foot to other units of length in the US customary system and the SI system. We will also provide 10 examples of conversion for each system.

    How to Convert Foot to Other Units of Length in the US Customary System

    The US customary system is a system of measurement that uses units such as inch, yard, mile, ounce, pound, gallon, etc. The US customary system is based on the English system of measurement that was used before the adoption of the metric system.

    To convert foot to other units of length in the US customary system, we need to know the relationship between foot and other units. Here are some common units and their equivalent values in feet:

  • 1 inch = 1/12 foot
  • 1 yard = 3 feet
  • 1 mile = 5280 feet
  • 1 fathom = 6 feet
  • 1 rod = 16.5 feet
  • To convert foot to any of these units, we need to multiply or divide by the appropriate factor. For example, to convert 10 feet to inches, we need to multiply by 12:

    10 feet x 12 = 120 inches

    To convert 10 feet to miles, we need to divide by 5280:

    10 feet / 5280 = 0.00189 miles

    To convert 10 feet to fathoms, we need to divide by 6:

    10 feet / 6 = 1.667 fathoms

    To convert 10 feet to rods, we need to divide by 16.5:

    10 feet / 16.5 = 0.606 rods

    How to Convert Foot to Other Units of Length in the SI System

    The SI system (or International System of Units) is a system of measurement that uses units such as meter, kilogram, second, ampere, kelvin, mole, candela, etc. The SI system is based on the metric system that was developed in France in the late 18th century.

    To convert foot to other units of length in the SI system, we need to know the relationship between foot and meter. The meter is the base unit of length in the SI system and it is defined as “the length of the path travelled by light in vacuum during a time interval of 1/299792458 seconds.” One foot is equal to 0.3048 meters.

    To convert foot to any other unit of length in the SI system, we need to multiply or divide by the appropriate power of ten and add a prefix. Here are some common units and their equivalent values in meters:

  • 1 kilometer = 1000 meters
  • 1 centimeter = 0.01 meter
  • 1 millimeter = 0.001 meter
  • 1 micrometer = 0.000001 meter
  • 1 nanometer = 0.000000001 meter
  • To convert foot to any of these units, we need to multiply by the appropriate factor and add a prefix.

Parsec: A Unit of Length

A parsec is a unit of length that is often used in astronomy to measure the large distances to astronomical objects outside the Solar System. It is approximately equal to 3.26 light-years or 206,265 astronomical units (au), which are the average distances from the Earth to the Sun. One parsec is about 30.9 trillion kilometres or 19.2 trillion miles.

Definition of the parsec

The word parsec is a combination of “parallax” and “arcsecond”, which are terms related to the measurement of angles. Parallax is the apparent shift in position of an object when viewed from different perspectives. Arcsecond is a unit of angle that is equal to one sixtieth of an arcminute, or one three thousand six hundredth of a degree.

A parsec is defined as the distance at which one astronomical unit subtends an angle of one arcsecond. In other words, it is the distance from which the Earth-Sun distance would appear as one arcsecond on the sky. This can be illustrated by an imaginary right triangle, where the adjacent side is one au, the opposite side is one parsec, and the angle opposite to the parsec side is one arcsecond.

History of the parsec

The concept of the parsec was first proposed by the British astronomer Herbert Hall Turner in 1913, as a convenient unit for expressing stellar distances. He coined the term by blending “parallax” and “second”. He also suggested using the symbol “pc” for parsec.

The first measurement of a stellar parallax was made by Friedrich Bessel in 1838, for the star 61 Cygni. He found that the star had a parallax of 0.314 arcseconds, which corresponds to a distance of about 10.4 parsecs. Since then, many more stars have been measured for their parallaxes, using various methods such as telescopes, satellites and interferometers.

The parsec is now widely used in astronomy and astrophysics, especially for objects within and around the Milky Way galaxy. For more distant objects, such as galaxies and quasars, larger units such as kiloparsecs (kpc), megaparsecs (Mpc) and gigaparsecs (Gpc) are used.

How to convert parsec

To convert parsecs to other units of length, we can use the following conversion factors:

  • 1 pc = 3.0857 × 10^16 m
  • 1 pc = 1.9174 × 10^13 mi
  • 1 pc = 2.06265 × 10^5 au
  • 1 pc = 3.26156 ly

To convert other units of length to parsecs, we can use the inverse of these conversion factors:

  • 1 m = 3.24078 × 10^-17 pc
  • 1 mi = 5.21553 × 10^-14 pc
  • 1 au = 4.84814 × 10^-6 pc
  • 1 ly = 0.306601 pc

Where parsec is used

The parsec is mainly used in astronomy and astrophysics, as it is a convenient unit for expressing distances between stars and other celestial objects. For example:

  • The nearest star to the Sun, Proxima Centauri, is about 1.3 pc away.
  • The center of our galaxy, the Milky Way, is about 8 kpc away.
  • The nearest galaxy to ours, Andromeda, is about 780 kpc away.
  • The most distant quasar known, ULAS J1342+0928, is about 8.8 Gpc away.

The parsec can also be used in other fields that deal with large distances or angles, such as geodesy, navigation and surveying.

Example conversions of parsec to other units

Here are some examples of converting parsecs to other units of length:

  • How many meters are in one parsec?

To convert one parsec to meters, we multiply by the conversion factor:

1 pc × 3.0857 × 10^16 m/pc = 3.0857 × 10^16 m

  • How many miles are in 10 parsecs?

To convert 10 parsecs to miles, we multiply by the conversion factor:

10 pc × 1.9174 × 10^13 mi/pc = 1.9174 × 10^14 mi

  • How many astronomical units are in 0.01 parsecs?

To convert 0.01 parsecs to astronomical units, we multiply by the conversion factor:

0.01 pc × 2.06265 × 10^5 au/pc = 2.06265 × 10^3 au

  • How many light-years are in 100 parsecs?

To convert 100 parsecs to light-years, we multiply by the conversion factor:

100 pc × 3.26156 ly/pc = 326.156 ly

  • How many parsecs are in one meter?

To convert one meter to parsecs, we divide by the conversion factor:

1 m / (3.0857 × 10^16 m/pc) = 3.24078 × 10^-17 pc

  • How many parsecs are in one mile?

To convert one mile to parsecs, we divide by the conversion factor:

1 mi / (1.9174 × 10^13 mi/pc) = 5.21553 × 10^-14 pc

  • How many parsecs are in one astronomical unit?

To convert one astronomical unit to parsecs, we divide by the conversion factor:

1 au / (2.06265 × 10^5 au/pc) = 4.84814 × 10^-6 pc

  • How many parsecs are in one light-year?

To convert one light-year to parsecs, we divide by the conversion factor:

1 ly / (3.26156 ly/pc) = 0.306601 pc



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