421 billion = 42,10,000 lakh. 421 billion is 421,000,000,000 in digits, written 4,21,00,00,00,000 in the Indian system.
How to convert billion to lakh
lakh = billion × 10,000
- 1 billion = 10,000 lakh (and 1 lakh = 0.0001 billion).
- Multiply the amount by the factor: 421 × 10,000 = 42,10,000.
- Answer: 421 billion = 42,10,000 lakh.
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 |
Billion to Lakh table
| Billion (billion) | Lakh (lakh) |
|---|---|
| 416 billion | 41,60,000 lakh |
| 417 billion | 41,70,000 lakh |
| 418 billion | 41,80,000 lakh |
| 419 billion | 41,90,000 lakh |
| 420 billion | 42,00,000 lakh |
| 421 billion | 42,10,000 lakh |
| 422 billion | 42,20,000 lakh |
| 423 billion | 42,30,000 lakh |
| 424 billion | 42,40,000 lakh |
| 425 billion | 42,50,000 lakh |
| 426 billion | 42,60,000 lakh |
| billion | lakh |
|---|---|
| 1 billion | 10,000 lakh |
| 2 billion | 20,000 lakh |
| 5 billion | 50,000 lakh |
| 10 billion | 1,00,000 lakh |
| 50 billion | 5,00,000 lakh |
| 100 billion | 10,00,000 lakh |
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).