Piece (pc)

General & non-SICurrent unit

A single item.

The piece is the reference unit for counting & quantity on this site.

1 piece = 0.08333333333 dozens

About the piece

Piece is the plain unit for counting individual items, with no grouping implied. The word reached English from Old French piece, which came from Late Latin pecia or petia, meaning a fragment or a parcel of land. Its ultimate origin is uncertain, though Wiktionary notes a possible Gaulish source. It displaced the native Old English styce, which meant the same kind of thing.

Wiktionary defines it as a single item belonging to a class of similar items, and the word turns up in compounds such as by the piece, piece rate, and piecework. Every other counting unit in this family is just a fixed number of pieces: a pair is 2, a dozen 12, a gross 144, and a great gross 1,728. Treating the piece as the base is what lets any of them convert into any other by simple multiplication or division.

Sources: Wiktionary: piece

Piece conversion chart

1 piece expressed in every other counting & quantity unit:

Unit1 piece
Dozens0.08333333333
Lakhs0.00001
Millions0.000001
Crores1×10⁻⁷
Billions (short Scale)1×10⁻⁹
Pairs0.5
Hundred0.01
Gross0.006944444444
Thousand0.001
Trillions (short Scale)1×10⁻¹²
Score0.05
Half Dozens0.1666666667
Quadrillions1×10⁻¹⁵
Reams0.002
Moles1.660539067×10⁻²⁴
Baker's Dozens0.07692307692
Small Gross0.008333333333
Great Gross0.0005787037037
Myriads0.0001
Yi / Oku1×10⁻⁸
Arab (Indian)1×10⁻⁹
Kharab (Indian)1×10⁻¹¹
Billions (long Scale)1×10⁻¹²
Quires0.04

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