Yi / Oku to Pieces (yi to pc)
1 yi / oku (East Asian) equals 100,000,000 pieces exactly.
How to convert yi / oku to pieces
To convert yi / oku to pieces, multiply the number of yi / oku by 100,000,000. This factor is exact. To go the other way, multiply pieces by 1×10⁻⁸.
pieces = yi / oku × 100,000,000
Example: 10 yi / oku = 1,000,000,000 pieces.
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
Yi / Oku (East Asian) (yi)
One hundred million (10⁸), written 億 / 亿 in Chinese and Japanese (oku) and Korean (eok). East Asian counting groups numbers by myriads.
Chinese counting does not group digits in threes. It groups them in fours, so 1,234,567,890 is read as 12 yi, 3456 wan, 7890. Wan is 10,000 and yi is 10,000 times wan, giving 100,000,000. In Japanese the same character is read oku and in Korean eok. The yi is therefore a pure number with no physical dimension, and its base here is simply one.
This myriad system differs from English, which builds on thousands. One million is 100 wan, and one billion in the short scale is 10 yi, since these languages have no native words for powers of one thousand. Ancient texts wrote 10,000 squared as wan wan before yi became the name. Older usage differed, and yi once stood for 10 to the 5th. The next unit, zhao, is 10 to the 12th in Taiwan, Japan and Korea, but mainland China has used it for a million, so official documents avoid it.
1 yi / oku (East Asian) = 100,000,000 pieces (exactly).
Sources: Wikipedia: Chinese numerals; Wikipedia: Myriad
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
Related conversions
- Pieces to yi / oku (reverse)
- Yi / oku to dozens
- Yi / oku to lakhs
- Yi / oku to millions
- Yi / oku to crores
- Yi / oku to billions (short scale)
- Dozens to pieces
- Lakhs to pieces
- Millions to pieces
- Crores to pieces
- Billions (short scale) to pieces
- Pairs to pieces
- Hundred to pieces
- Gross to pieces
- Thousand to pieces
- Trillions (short scale) to pieces
- Score to pieces
- Half dozens to pieces
See all counting & quantity units.