Thousand (k)

General & non-SICurrent unit

One thousand (10³).

1 thousand = 1,000 pieces (exactly).

1 thousand = 1,000 pieces

About the thousand

Thousand traces back through Middle English thousend to Old English þūsend and a Proto-Germanic form, and it has close relatives across the Germanic languages: German tausend, Dutch duizend, Swedish tusen, and Icelandic þúsund. Cognates also appear in Slavic and Baltic languages, among them Polish tysiąc and Lithuanian tūkstantis. Learned English vocabulary adds chiliad, a collective for a thousand, and millennium.

Its Roman numeral is M, and its scientific shorthand is the SI prefix kilo-, standing for 10³. The word has not always meant 1,000. In Old Norse counting, which grouped numbers in twelves of tens, a thousand meant 1,200. At ordinary scales, a thousand seconds is about 16.7 minutes, and a thousand days is about 2.7 years.

Sources: Wiktionary: thousand; Wikipedia: Long hundred; BIPM SI Brochure, 9th edition (2019)

Thousand conversion chart

1 thousand expressed in every other counting & quantity unit:

Unit1 thousand
Pieces1,000
Dozens83.33333333
Lakhs0.01
Millions0.001
Crores0.0001
Billions (short Scale)0.000001
Pairs500
Hundred10
Gross6.944444444
Trillions (short Scale)1×10⁻⁹
Score50
Half Dozens166.6666667
Quadrillions1×10⁻¹²
Reams2
Moles1.660539067×10⁻²¹
Baker's Dozens76.92307692
Small Gross8.333333333
Great Gross0.5787037037
Myriads0.1
Yi / Oku0.00001
Arab (Indian)0.000001
Kharab (Indian)1×10⁻⁸
Billions (long Scale)1×10⁻⁹
Quires40

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