Big Number Calculator
Work with extremely large numbers. Display names, notations, and visual comparisons.
1 + 9 digits
Named Numbers
Standard
1,000,000,000
10 digits
Representations
Scientific
1.00000... × 10^9
Short Scale (US)
billion
Long Scale (EU)
milliard
Visual Comparison
Seconds
3.17e+1 years
Grains of sand
Less than all beaches on Earth
Dollars
Less than US national debt
Reference Table
| Name | Zeros | Scientific |
|---|---|---|
| Thousand | 3 | 10³ |
| Million | 6 | 10⁶ |
| Billion | 9 | 10⁹ |
| Trillion | 12 | 10¹² |
| Quadrillion | 15 | 10¹⁵ |
| Quintillion | 18 | 10¹⁸ |
| Googol | 100 | 10¹⁰⁰ |
Naming Scales
Two scales exist: short scale (US/UK) where billion = 10⁹, and long scale (continental Europe, Latin America) where billion = 10¹². This causes frequent confusion.
Really Big Numbers
A googol is 10¹⁰⁰ (1 followed by 100 zeros). A googolplex is 10^googol, so large it couldn't be written out even using the entire observable universe as paper.
Big Numbers in Reality
There are approximately 10⁸⁰ atoms in the observable universe. Global debt is on the order of 10¹³ dollars. The number of grains of sand on Earth is approximately 10²³.