1,000,000,000 in words
British English
one billion
A billion is a thousand million on the short scale used here. On the old British long scale it meant a million million, which is why old books disagree with new ones.
Quick reference
- In figures
- 1,000,000,000
- British English
- one billion
- American English
- The same (why they differ)
- Ordinal
- one billionth (1,000,000,000th)
- Place value
- 1 in the billions column
- Expanded form
- 1,000,000,000
- Standard form
- 1 × 10⁹
- Even or odd
- Even
- Prime factors
- 2⁹ × 5⁹
Convert any other number, up to thirty-six digits.