## Kilogram |

Kilogram | |
---|---|

A | |

General information | |

Unit of | |

Symbol | kg |

Conversions | |

1 kg in ... | ... is equal to ... |

| ≈ 2.205^{[Note 1]} |

British Gravitational | ≈ 0.0685 |

Official definition | |

Definition | The kilogram is the unit of mass; it is equal to the mass of the international prototype of the kilogram. |

2019 kilogram | |
---|---|

General information | |

Unit of | |

Symbol | kg |

Conversions | |

1 kg in ... | ... is equal to ... |

| ≈ 2.205^{[Note 2]} |

British Gravitational | ≈ 0.0685 |

Official definition | |

Defining authority | |

Defining event | 2018 |

Effective since | 20 May 2019 |

Definition | The kilogram, symbol kg, is the SI unit of mass. It is defined by taking the fixed numerical value of the ^{−34} when expressed in the unit J⋅s, which is equal to kg⋅m 6.626^{2}⋅s^{−1}, where the metre and the second are defined in terms of ν_{Cs} |

The **kilogram** or **kilogramme** (symbol: **kg**) is the *International Prototype Kilogram* (informally *Le Grand K* or IPK), manufactured in 1889, and carefully stored in

The kilogram was originally defined as the mass of a

In spite of best efforts to maintain it, the IPK has diverged from its replicas by approximately 50 micrograms since their manufacture late in the 19th century. This led to efforts to develop measurement technology precise enough to allow replacing the kilogram artifact with a definition based directly on physical phenomena, a process which is scheduled to finally take place in 2019.

The new definition is based on invariant constants of nature, in particular the ^{[2]} The new definition was approved by the ^{[3]} The Planck constant relates a light particle’s energy, and

- definition
- name and terminology
- mass and weight
*kilogramme des archives*- international prototype of the kilogram
- redefinition agreed on 16 november 2018
- alternative approaches to redefining the kilogram
- si multiples
- see also
- notes
- references
- external links

The ^{[4]}
The final kilogram, manufactured as a prototype in 1799 and from which the International Prototype Kilogram (IPK) was derived in 1875, had a mass equal to the mass of 1 dm^{3} of water under atmospheric pressure and at the temperature of its maximum density, which is approximately 4

The kilogram is the only named SI unit with an *kilo*) as part of its name. Until the ^{[5]}

The IPK is rarely used or handled. Copies of the IPK kept by

The International Prototype Kilogram was commissioned by the *h*. The decision was originally deferred until 2014; in 2014 it was deferred again until the next meeting.^{[6]} CIPM has proposed^{[7]} revised definitions of the ^{[8]} approved the change,^{[9]} with the new definitions coming into force on 20 May 2019.^{[10]} The ^{−34} kg⋅m^{2}⋅s^{−1}, thereby defining the kilogram in terms of the second and the metre. 6.626^{[2]} Since the metre is defined as a time fraction of the speed of light in vacuum, then the kilogram is defined in terms of the time only.

The *international*) ^{[11]} Other traditional units of weight and mass around the world are now also defined in terms of the kilogram, making the kilogram the

Other Languages

Afrikaans: Kilogram

Alemannisch: Kilogramm

Аҧсшәа: Акилограмм

العربية: كيلوغرام

aragonés: Kilogramo

অসমীয়া: কিলোগ্ৰাম

asturianu: Quilogramu

Avañe'ẽ: Kilogarámo

Aymar aru: Kilu

azərbaycanca: Kiloqram

বাংলা: কিলোগ্রাম

Bân-lâm-gú: Kong-kin

башҡортса: Килограмм

беларуская: Кілаграм

беларуская (тарашкевіца): Кіляграм

भोजपुरी: किलोग्राम

български: Килограм

བོད་ཡིག: སྟོང་ཁེའུ།

bosanski: Kilogram

brezhoneg: Kilogramm

català: Quilogram

Чӑвашла: Килограмм

čeština: Kilogram

Cymraeg: Cilogram

dansk: Kilogram

Deutsch: Kilogramm

eesti: Kilogramm

Ελληνικά: Χιλιόγραμμο

español: Kilogramo

Esperanto: Kilogramo

euskara: Kilogramo

فارسی: کیلوگرم

français: Kilogramme

Frysk: Kilogram

furlan: Chilogram

Gaeilge: Cileagram

galego: Quilogramo

贛語: 公斤

客家語/Hak-kâ-ngî: Kûng-kîn

한국어: 킬로그램

հայերեն: Կիլոգրամ

हिन्दी: किलोग्राम

hrvatski: Kilogram

Bahasa Indonesia: Kilogram

interlingua: Kilogramma

íslenska: Kílógramm

italiano: Chilogrammo

עברית: קילוגרם

Basa Jawa: Kilogram

къарачай-малкъар: Килограмм

ქართული: კილოგრამი

қазақша: Килограмм

Kiswahili: Kilogramu

Kreyòl ayisyen: Kilogram

kurdî: Kîlogram

Кыргызча: Килограмм

Latina: Chiliogramma

latviešu: Kilograms

Lëtzebuergesch: Kilogramm

lietuvių: Kilogramas

Limburgs: Kilogram

lingála: Kilogálame

lumbaart: Chilogram

magyar: Kilogramm

македонски: Килограм

മലയാളം: കിലോഗ്രാം

Malti: Kilogramm

मराठी: किलोग्रॅम

مصرى: كيلوجرام

Bahasa Melayu: Kilogram

Mìng-dĕ̤ng-ngṳ̄: Gŭng-gṳ̆ng

монгол: Килограмм

မြန်မာဘာသာ: ကီလိုဂရမ်

Nederlands: Kilogram

नेपाली: किलोग्राम

नेपाल भाषा: किलोग्राम

日本語: キログラム

Nordfriisk: Kilogram

norsk: Kilogram

norsk nynorsk: Kilogram

occitan: Quilograma

oʻzbekcha/ўзбекча: Kilogramm

ਪੰਜਾਬੀ: ਕਿਲੋਗ੍ਰਾਮ

پنجابی: کلوگرام

Patois: Kilogram

Plattdüütsch: Kilogramm

polski: Kilogram

português: Quilograma

română: Kilogram

Runa Simi: Kilugramu

русиньскый: Килограм

русский: Килограмм

Gagana Samoa: Kilokalama

संस्कृतम्: किलोग्राम्

Scots: Kilogramme

shqip: Kilogrami

sicilianu: Chilugrammu

සිංහල: කිලෝග්රෑමය

Simple English: Kilogram

slovenčina: Kilogram

slovenščina: Kilogram

ślůnski: Kilogram

Soomaaliga: Kiilogaraam

کوردی: کیلۆگرام

српски / srpski: Килограм

srpskohrvatski / српскохрватски: Kilogram

Basa Sunda: Kilogram

suomi: Kilogramma

svenska: Kilogram

Tagalog: Kilogramo

தமிழ்: கிலோகிராம்

తెలుగు: కిలోగ్రాము

ไทย: กิโลกรัม

Türkçe: Kilogram

українська: Кілограм

اردو: کلوگرام

vèneto: Chiłogramo

Tiếng Việt: Kilôgam

文言: 公斤

Winaray: Kilogramo

吴语: 公斤

ייִדיש: קילאגראם

粵語: 千克

žemaitėška: Kėluograms

中文: 千克