kilogram

Also known as kg, kilogramme, kilo, kilograms

The kilogram (also spelled kilogramme) is the base unit of mass in the International System of Units (SI), equal to one thousand grams. It has the unit symbol kg. The word "kilogram" is formed from the combination of the metric prefix kilo- (meaning one thousand) and gram; it is commonly shortened to "kilo" (plural "kilos").

AI overview

The kilogram is the standard unit of mass used worldwide, equal to one thousand grams and symbolized as "kg." It matters because it's the fundamental measurement that scientists, engineers, and everyday people rely on to weigh and compare the mass of objects accurately across different countries and contexts.

AI-generated from the Wikipedia summary — may contain errors.

Key facts

Unit.name: kilogram
Unit.image: Poids fonte 5 kg à 2 hg 02.jpg
Unit.caption: A series of 5, 2, 1, 0.5 and 0.2 kilogram weights, made of cast iron
Unit.standard: SI
Unit.quantity: mass
Unit.symbol: kg
Unit.units1: Avoirdupois
Unit.units2: British Gravitational
Unit.inunits2: ≈ slugs
Unit.units3: Unified atomic mass units

via Wikipedia infobox

Wikidata facts

Image: CGKilogram.jpg

Show 8 more facts

unit symbol: kg
short name: kg
conversion to SI unit: 1
Commons category: Kilogram
Unicode character: ㎏
Wikidata SPARQL query equivalent: wd:Q11570 p:P2370/psn:P2370 [wikibase:quantityAmount ?source; wikibase:quantityUnit ?base]. ?item p:P2370/psn:P2370 [wikibase:quantityAmount ?target; wikibase:quantityUnit ?base]. BIND(?source / ?target as ?value)
conversion to standard unit: 1000
P8168: Žabovřesky

Sources (4)

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Article

11 sections

Contents

Definition
Timeline of previous definitions
Name and terminology
Redefinition based on fundamental constants
SI multiples
Usage and practical issues with SI mass units
See also
Notes
References
External links
Videos

The kilogram is an SI base unit, defined ultimately in terms of three defining constants of the SI, namely a specific transition frequency of the caesium-133 atom, the speed of light, and the Planck constant. A properly equipped metrology laboratory can calibrate a mass measurement instrument such as a Kibble balance as a primary standard for the kilogram mass.