Pieces to Quires (pc to qr)
1 piece equals 0.04 quires exactly.
How to convert pieces to quires
To convert pieces to quires, multiply the number of pieces by 0.04. This factor is exact. To go the other way, multiply quires by 25.
quires = pieces × 0.04
Example: 10 pieces = 0.4 quires.
Large-number names differ around the world: this site uses the short scale (billion = 10⁹) by default, and lists the long-scale billion separately.
About these units
Piece (pc)
A single item.
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.
The piece is the reference unit for counting & quantity on this site.
Sources: Wiktionary: piece
Quire (qr)
25 sheets of machine-made paper (24 for handmade and some specialty papers). One twentieth of a ream.
Quire comes from the Latin quaternum, by fours, which passed through Old French into Old English. The name made sense in manuscript days, when a quire was usually four sheets folded once, giving eight leaves. Once paper let binders stitch five to seven sheets at a time, the link to four faded.
Today a quire is normally 25 sheets, a twentieth of a 500-sheet ream. Handmade and specialty papers sold in 480-sheet reams still use quires of 24, which was also an older measure in Britain and the United States. Other counts have existed, including 15, 18, and 20, depending on the paper type. The damaged outer quires of a packed ream, called cassie or cording quires, held 20 sheets each. Blank-book binders sometimes use the word for 80 pages.
1 quire = 25 pieces (exactly).
Sources: Wikipedia: Units of paper quantity
Related conversions
- Quires to pieces (reverse)
- Pieces to dozens
- Pieces to lakhs
- Pieces to millions
- Pieces to crores
- Pieces to billions (short scale)
- Pieces to pairs
- Pieces to hundred
- Pieces to gross
- Pieces to thousand
- Pieces to trillions (short scale)
- Pieces to score
- Pieces to half dozens
- Dozens to quires
- Lakhs to quires
- Millions to quires
- Crores to quires
- Billions (short scale) to quires
See all counting & quantity units.