**Earth measurements** are used as the standard unit of measurement in the United Federation of Planets.

## LengthEdit

### KilometerEdit

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

- 1 km ~ 0.62137 miles

(*TOS* movie: *Star Trek II: The Wrath of Khan*)

### MillimeterEdit

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

- 1 mm ~ 0.03937 inches

(*TOS* episode: "The Savage Curtain")

**See also**: millimeter article at, the free encyclopedia.**Wikipedia**

### InchEdit

An **inch** (in) was originally based on the width of an average person's thumb. It was later refined based on SI units.

- 1 inch ~ 2.54 cm

(*TOS* episode: "Is There in Truth No Beauty?")

## MassEdit

### Kilogram Edit

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

In the Imperial units system 1 pound ≡ 0.45359237 kg.

#### Gram Edit

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

1 ounce ≡ 28.349523 g.

#### Milligram Edit

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

**See also:**Orders of magnitude (mass)#10-6 to one kg article at, the free encyclopedia.**Wikipedia**

## Volume Edit

### Liter Edit

A **liter** (L or l) is 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.

#### milliliter Edit

A **milliliter** (ml) is 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.

**See also:**Litre#SI prefixes applied to the litre article at, the free encyclopedia.**Wikipedia**

### cc Edit

A **cc** (**cubic centimeter**, official cm^{3}) 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.

**See also:**Cubic centimetre article at, the free encyclopedia.**Wikipedia****See also:**Drug dosage

### cubic meter Edit

During a sensor sweep of the Neutral zone, the USS *Enterprise*-E found 25 particles of dust per cubic meter. (*TNG* movie: *First Contact*)

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## External linkEdit

- Earth measurements article at
, the wiki for canon**Memory Alpha***Star Trek*.