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Earth measurements were the standard units of measure used in the United Federation of Planets.

It is possible that the UFP did not actually use Earth measurements, but that their usage on screen is an example of "implicit translation" (such as the characters in the film K-19: The Widowmaker speaking English when the viewer understands that they are "speaking" Russian.) This is implied by scenes such as the one where Kirk remarks to Abraham Lincoln that the Enterprise could convert to minutes. (TOS: "The Savage Curtain")

Length Edit

MeterEdit

A meter (m) was the fundamental SI unit of length, defined as the distance traveled by light in a vacuum in 1/299,792,458 second.

In the Imperial units system, 1 foot ≡ 0.3048 m.

See alsoEdit

External linkEdit

NanometerEdit

A nanometer (nm) was an SI unit of length equal to one billionth of a meter (1e−9×10−9 m).

1 nm ≈ 0.00000000003937 inches.

External linkEdit

MillimeterEdit

A millimeter (mm) was an SI unit of length equal to 1/1,000 of a meter.

1 mm ≈ 0.03937 inches.

External linkEdit

CentimeterEdit

A centimeter (cm) was an SI unit of length equal to 1/100 of a meter.

1 cm ≈ 0.3937 inches.

Lucille Harewood's height was given in centimeters on her medical status display at Royal Children's Hospital in an alternate reality 2259. (Star Trek Into Darkness)

In 2374, Odo tricked Miles O'Brien and Julian Bashir into believing that they were still a couple of centimeters shorter than normal after being shrunk and regrown again. (DS9: "One Little Ship")

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KilometerEdit

A kilometer (km) was an SI unit of length equal to one thousand meters.

1 km ≈ 0.62137 miles.

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Micron Edit

A micron was another name for micrometer (µm), an SI unit of length equal to 1 millionth of a meter (1e−6×10−6 m).

1 mil ≡ 25.4 μm.

The absorption depth of osmium alloy was at least twenty-thousand particles per micron. (ENT: "The Catwalk")

External linkEdit

Mile Edit

(Main article: Mile)

A mile (mi) was originally one thousand paces, or 5,000 Roman feet (∼4,850 Imperial feet). A later British reform changed the mile to 5,280 Imperial feet so that it would equal eight furlongs.

1 mi ≡ 1.609344 km.

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Nautical mile Edit

A nautical mile was based on the length of one minute of arc of a great circle.

1 nautical mile ≡ 1,852 m (∼6,076.12 ft)

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FootEdit

A foot (ft, plural feet) was an Imperial unit of length equal to twelve inches, or one third of a yard.

1 ft ≡ 0.3048 m.

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Inch Edit

An inch (in) was originally based on the width of the average man's thumb, or the length of three barley-corns. It was later redefined based on SI units.

1 in ≡ 2.54 cm.

A passage from Alice's Adventures in Wonderland described Alice being only ten inches high. (DIS: "Context Is for Kings")

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Light year Edit

(Main article: Light year)

One light year was the distance that light traveled in one Earth year. It was approximately equal to 9.46e15×1015 meters, or 5.88e12×1012 miles.

Mass Edit

Kilogram Edit

A kilogram (kg) was the fundamental SI unit of mass.

In the Imperial units system, 1 pound ≡ 0.45359237 kg.

Lucille Harewood's weight was given in kilograms on her medical status display at Royal Children's Hospital in an alternate reality 2259. (Star Trek Into Darkness)

External linkEdit

Gram Edit

A gram (g) was an SI unit of mass equal to 1/1,000 of a kilogram.

1 ounce ≡ 28.349523125 g.

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Milligram Edit

A milligram (mg) was an SI unit of mass equal to 1/1,000 of a gram.

External linkEdit

Time Edit

See: Time measurements

Volume Edit

Liter Edit

A liter (L or l) was a derived SI unit of volume, equal to 1/1,000 cubic meters (1 cubic decimeter).

In the Imperial units system, 1 gallon ≡ 4.54609 L (∼277.42 cubic inches).

In the US system, 1 gallon ≡ 231 cubic inches ≡ 3.785411784 L.

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Milliliter Edit

A milliliter (ml) was an SI unit of volume equal to 1/1,000 of a liter.

In the Imperial system, 1 fluid ounce ≡ 28.4130625 ml.

In the US system, 1 fluid ounce ≡ 29.5735295625 ml.

External linkEdit

cc Edit

Cubic meter Edit

Units Edit

See also Edit