Earth measurementsedit

From Memory Alpha, the free Star Trek reference

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

Contents 1 Length 1.1 Meter 1.1.1 centimeter 1.1.2 kilometer 1.1.3 millimeter 1.2 Micron 1.3 Mile 1.4 Foot 1.5 Inch 1.6 Light Year 2 Mass 2.1 Kilogram 2.1.1 Gram 2.1.2 Milligram 3 Time 4 Volume 4.1 Liter 4.1.1 milliliter 4.2 cc 5 Units 5.1 Gross

[edit] Length

[edit] Meter

A meter (m) is 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 also: Meter at Wikipedia

[edit] centimeter

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

1 cm ≈ 0.39370 inches.

See also: Centimeter at Wikipedia

[edit] kilometer

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

1 km ≈ 0.62137 miles.

See also: Kilometer at Wikipedia

[edit] millimeter

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

1 mm ≈ 0.03937 inches.

See also: Millimeter at Wikipedia

[edit] Micron

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

1 mil ≡ 25.4 μm.

See also: Micrometer at Wikipedia

[edit] Mile

A mile 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 mile ≡ 1.609344 km.

See also: Mile at Wikipedia

[edit] Foot

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

1 foot ≡ 0.3048 m.

See also: Foot at Wikipedia

[edit] Inch

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

1 inch ≡ 2.54 cm.

See also: Inch at Wikipedia

[edit] Light Year

(Main Article: Lightyear)

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

[edit] Mass

[edit] Kilogram

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

In the Imperial Units system 1 pound ≡ 0.45359237 kg.

See also: Kilogram at Wikipedia

[edit] Gram

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

1 ounce ≡ 28.349523 g.

See also: Gram at Wikipedia

[edit] Milligram

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

See also: Milligram at Wikipedia

[edit] Time

See: Time measurements

[edit] Volume

[edit] Liter

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

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

In the Imperial Units system 1 gallon ≡ 4.54609 L (~277.42 cubic inches).

See also: Liter at Wikipedia

[edit] milliliter

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

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

In the Imperial system 1 fluid ounce ≡ 28.4130625 ml.

See also: Milliliter at Wikipedia

[edit] cc

A cc (cubic centimeter, official cm³) is a measure of volume equal to one cubic centimeter (cm), which is also equal to one milliliter (ml). The cc is a common term for milliliter used in measuring the dosage of liquid medicines by volume.

1 cubic inch ≡ 16.387964 ml ≡ 16.387964 cc.

[edit] Units

[edit] Gross

A gross is equal to a dozen dozen.

See also: Gross at Wikipedia

See also:

• Drug dosage
• cc at Wikipedia