This chart lists the names of large numbers on the short scale (used in the US and modern UK), from a thousand up to a googol. Each step up adds three zeros: million (6 zeros), billion (9), trillion (12), and so on.
| Name | Power of 10 | Zeros |
|---|---|---|
| Thousand | 10³ | 3 |
| Million | 10⁶ | 6 |
| Billion | 10⁹ | 9 |
| Trillion | 10¹² | 12 |
| Quadrillion | 10¹⁵ | 15 |
| Quintillion | 10¹⁸ | 18 |
| Sextillion | 10²¹ | 21 |
| Septillion | 10²⁴ | 24 |
| Octillion | 10²⁷ | 27 |
| Nonillion | 10³⁰ | 30 |
| Decillion | 10³³ | 33 |
| Undecillion | 10³⁶ | 36 |
| Duodecillion | 10³⁹ | 39 |
| Vigintillion | 10⁶³ | 63 |
| Centillion | 10³⁰³ | 303 |
| Googol | 10¹⁰⁰ | 100 |
| Googolplex | 10^googol | — |