Hundred to Trillions (short Scale) (100 to T)

1 hundred equals 1×10⁻¹⁰ trillions (short scale) exactly.

1 hundred = 1×10⁻¹⁰ trillions (short scale)

How to convert hundred to trillions (short scale)

To convert hundred to trillions (short scale), multiply the number of hundred by 1×10⁻¹⁰. This factor is exact. To go the other way, multiply trillions (short scale) by 10,000,000,000.

trillions (short scale) = hundred × 1×10⁻¹⁰

Example: 10 hundred = 1×10⁻⁹ trillions (short scale).

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

Hundred (100)

General & non-SICurrent unit

One hundred.

The English word hundred descends from Old English hundred and, further back, from a Proto-Germanic compound that joined the old root for 100 with a word meaning count or row. For much of history it did not always mean 100. Old Norse counted large numbers in twelves of tens, and medieval England used a long hundred of 120 beside the short hundred of 100. Around 1300 the Assize of Weights and Measures had both in play: a hundred kippers or a hundred ells of hemp canvas or linen meant 120, while a hundred fresh herring meant 100.

The word also named a historical subdivision of southern English counties, notionally 12,000 acres. Today a hundred is simply ten tens, five score, or a tenth of a thousand, and the SI prefix hecto stands for 10². The long hundred faded as Arabic numerals, which rely on base 10, spread from the 14th century onward.

1 hundred = 100 pieces (exactly).

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

Trillion (short Scale) (T)

General & non-SICurrent unit

One thousand billion (10¹²) in the short scale used in English.

A trillion is a thousand billion, 10¹², and its name fits the short-scale pattern in which each new name multiplies by a thousand: million, billion, trillion, quadrillion. The prefix tri- is Latin for three, and in Jehan Adam's 1475 scheme trimillion meant the third power of a million, 10¹⁸. That is still the long-scale meaning of trillion, so the short-scale trillion equals the long-scale billion.

The SI prefix for 10¹² is tera-. Where the long scale is used, including continental Europe, French Canada, and the Spanish-speaking Americas, the same word names 10¹⁸. A trillion seconds is about 31,700 years. Trillions turn up in energy statistics: an explainer from the U.S. Energy Information Administration cites U.S. natural gas consumption of 32.51 trillion cubic feet, which it converts to 33.61 quads.

1 trillion (short scale) = 1,000,000,000,000 pieces (exactly).

Sources: Wikipedia: Names of large numbers; U.S. EIA: British thermal units (Btu); BIPM SI Brochure, 9th edition (2019)

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