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1 Billion in Million

1 billion equals 1,000 million. In figures, 1 billion is written 1,000,000,000 (a 1 followed by nine zeros) and 1 million is 1,000,000 (six zeros). To convert billions to millions, multiply by 1,000.

Billions to millions

BillionMillion
1 billion1,000 million
2 billion2,000 million
5 billion5,000 million
0.5 billion500 million
10 billion10,000 million
100 billion100,000 million

How to convert, step by step

  1. 1Take the number of billions.
  2. 2Multiply by 1,000.
  3. 3The result is the value in millions — for example, 2.5 billion × 1,000 = 2,500 million.

Billion, million and the Indian system

On the international (short-scale) system, one billion is a thousand million. In the Indian numbering system the same value is 100 crore, since 1 crore = 10 million. So 1 billion = 1,000 million = 100 crore.

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Related concepts

Frequently asked questions

1,000 million make 1 billion.

A billion has nine zeros: 1,000,000,000.

1 billion equals 100 crore (1 crore = 10 million).