 K

an informal abbreviation for one thousand, the symbol for the metric prefix
kilo (1000) is actually k, not K.
 kaf

a symbol for 1000 acre feet.
 kanal

a traditional unit of land area in Pakistan, equal to 20 marlas. it is equal to
605 square yards or 1/8 acre, about 505.857 square meters.
 kappland

a traditional unit of land area in Sweden. It is equal to 1/32 tunnland or
154.26 square meters or about 184.50 square yards.
 karat

a traditional unit of mass for precious stones, currently
called carat in both Britain and the U.S.

a traditional measure of proportion equal to 1/24, used by U.S. jewelers to
express the purity of gold alloys. Thus "18karat gold" is 18/24, or 75%, gold.
 kati

a traditional Malaysian unit of weight, usually spelled catty in English.
 kattha or katta

a traditional unit of land area in South Asia, equal to 20 dhurs or 1/20 bigha.
varied in size from one region to another. In Nepal, where the unit is still in
use, the kattha equals about 338 square meters or 442 square yards.
 kBtu

a symbol for 1000 British thermal units, equals about 1.055 megajoules or
0.2931 kilowatt hour.
 keddah

a traditional Egyptian unit of liquid volume also used in other parts of the
Middle East, equals about 2.0625 liter (about 2.18 U.S. liquid quarts).
 kelvin (K)

the SI base unit of temperature, called the degree Kelvin (°K).
One kelvin represents exactly 273.15 temperature difference as one degree
Celsius: ^{o}C = 273.15 + °K.
 ken

a traditional Japanese unit of length. The ken equals 6 shaku, about 1.818
meters (5.965 feet). The ken is the length of a traditional tatami mat.
 kilo

a common informal name for a kilogram.
 kilo

a metric prefix meaning 1000. The Greek word for a thousand.
 kilo

in measuring the memory of a computer, the prefix kilo often means 2^{10}
= 1024 instead of 1000.
 kiloampere (kA)

a unit of electric current equal to 1000 amperes.
 kilobar

a metric unit of pressure, 1000 bars, 100 megapascals, or about 14,503 pounds
per square inch.
 kilobit (kb)

a unit of information equal to 1024 bits or 128 bytes.
 kilobyte

a unit of information equal to 1024 bytes.
 kilocycle

1000 cycles; an informal name for the kilohertz.
 kilocycle per second (kc/s)

an informal name for the kilohertz.
 kilofoot

a traditional unit of distance equal to 1000 feet or exactly 304.8 meters.
 kilogram

One kilogram equals exactly 1000 grams, or about 2.204 622 6 pounds,
approximately the mass of a liter of water by design.
 kilogram calorie

the "large calorie" or "food calorie" used in nutrition, equal to 1000 ordinary
(gram) calories. Its correct name is kilocalorie.
 kilogram force

a unit of force equal to the gravitational force on a mass of one kilogram. One
kilogram of force equals 9.806 65 newtons.
 kilogram meter

a metric unit of work or energy equal to 9.806 65 joules (J). This actually
means one kilogram of force acting through a distance of one meter, equals
9.806 65 newton meters.
 kilo gram mole

One kilogram mole of a compound is the number of kilograms of the compound
equal to the molecular weight of a molecule of that compound measured in atomic
mass units. The correct name for this unit is the kilomole.
 kilogram (force) per square centimeter

one kilogram force per square meter is equal to 9.806 65 pascals, it is equal
to 98.0665 kilopascals or about 14.2234 pounds per square inch.
 kilohertz (kHz)

a common unit of frequency equal to 1000 per second or 1 per millisecond.
 kilojoule (kJ)

a common metric unit of work or energy, comparable to the British thermal unit
(Btu). One kilojoule equals 0.947 817 Btu, 0.238 846 kilocalories, 0.277 778
watt hour.
 kiloliter (kl or kL)

a metric unit of volume, equals about 35.3147 ft^{3}, 1.307 95 yd^{3},
264.17 U.S. gallons, 219.99 British Imperial gallons, 7.497 U.S. bushels, or
6.049 British imperial bushels.
 kilometer (km)

a common metric unit of length or distance. One kilometer is 1000 meters,
about 0.621 371 19 mile, 1093.6133 yards, or 3280.8399 feet.
 kilometer per hour

a common metric unit of speed or velocity.
 kilomole (kmol)

a unit of amount of substance equal to 1000 moles. It was formerly
called the kilogram mole (See above).
 kilonewton

a common metric unit of force, a kilonewton equals 1000 newtons.
 kilopascal (kPa)

a common metric unit of pressure. One kilopascal equals 1000 pascals (Pa), 10
millibars, or about 0.145 038 pounds per square inch, 7.502 millimeters of
mercury (mm Hg), 0.2953 inches of mercury (in Hg), 4.015 inches of water
column, or 0.3346 foot of head.
 kilopond

another name for the kilogram of force.
 kilosecond (ks or ksec)

a unit of time equal to 1000 seconds.
 kilovolt (kV)

a common unit of electric potential equal to 1000 volts.
 kilovolt ampere (kV·A)

a common unit of load in power engineering, equal to 1000 volt amperes.
 kilowatt (kW)

a common metric unit of power, equivalent to 1000 watts, about 1.341 022
horsepower, or 737.562 footpounds per second.
 kilowatt hour

the commercial unit of electric energy. One kilowatt hour represents the amount
of energy delivered at a rate of 1000 watts over a period of one hour, or 3.6
megajoules of energy, about 3412.141 Btu, 859.846 (kilogram) Calories, or
about 2.655 million foot pounds.
 kiloyard

1000 yards or 914.4 meters.
 kiloyear

1000 years, same as a millennium.
 kin

the Japanese version of the catty, a common weight unit of the Far East, about
1.323 pounds or almost exactly 600 grams.
 kip

a symbol for 1000 inch pounds, used as a unit of energy or torque.
 klafter

a traditional unit of distance in Germanspeaking countries. The Austrian
klafter is equal to 1.8965 meters (6.22 feet). In Switzerland the klafter was
exactly 1.8 meters (5.9055 feet).
 knot

a unit of velocity equal to one nautical mile per hour. It is used to express
speeds at sea, as the speed of the ship, the speeds of the wind and of the
current. One knot equals about 1.1508 miles per hour, exactly 1.852
 knot

an informal unit of distance equal to the nautical mile, 6086 feet.
 koku

a traditional Japanese unit of volume, equal to about 180.391 liters (39.68
British imperial gallons or 6.37 cubic feet). The unit originated as an
estimate of the amount of rice needed to feed a person for a year.
 kon

Korean name for the catty.
 koyan

a unit of weight in Asia equals to 4000 catty or 5333.33 pounds (8/3 short
ton).
 krina

a traditional unit of volume in Bulgaria, now expressed in the metric system as
being equal to exactly 20 liters (5.28 U.S. liquid gallons).
 kwan

a traditional Japanese unit of weight equal to 6.25 kin, which is about 8.27
pounds or 3.75 kilograms.
