31.7 crore = 0.317 billion. 31.7 crore is 317,000,000 in digits, written 31,70,00,000 in the Indian system.
How to convert crore to billion
billion = crore × 0.01
- 1 crore = 0.01 billion (and 1 billion = 100 crore).
- Multiply the amount by the factor: 31.7 × 0.01 = 0.317.
- Answer: 31.7 crore = 0.317 billion.
Shortcut: dividing by 100 gives the same result as multiplying by 0.01.
Indian and international place values
| Indian | Digits (Indian) | International |
|---|---|---|
| 1 lakh | 1,00,000 | 100 thousand |
| 10 lakh | 10,00,000 | 1 million |
| 1 crore | 1,00,00,000 | 10 million |
| 10 crore | 10,00,00,000 | 100 million |
| 100 crore (1 arab) | 1,00,00,00,000 | 1 billion |
| 1 lakh crore | 1,00,00,00,00,000 | 1 trillion |
Crore to Billion table
| Crore (crore) | Billion (billion) |
|---|---|
| 31.2 crore | 0.312 billion |
| 31.3 crore | 0.313 billion |
| 31.4 crore | 0.314 billion |
| 31.5 crore | 0.315 billion |
| 31.6 crore | 0.316 billion |
| 31.7 crore | 0.317 billion |
| 31.8 crore | 0.318 billion |
| 31.9 crore | 0.319 billion |
| 32 crore | 0.32 billion |
| 32.1 crore | 0.321 billion |
| 32.2 crore | 0.322 billion |
| crore | billion |
|---|---|
| 1 crore | 0.01 billion |
| 2 crore | 0.02 billion |
| 5 crore | 0.05 billion |
| 10 crore | 0.1 billion |
| 50 crore | 0.5 billion |
| 100 crore | 1 billion |
Good to know
1 lakh = 100,000 (1,00,000) and 1 crore = 10 million (1,00,00,000).
1 million = 10 lakh, 1 billion = 100 crore, 1 trillion = 1 lakh crore.
The Indian system groups digits in twos after the first three (15,00,00,000); the international system groups in threes (150,000,000).