Billion to lakh
1 billion = 10,000 lakh
Type a value in billion (B) to get lakh (L) straight away. Both units belong to indian number units, measured here against the one.
1 B = 10,000 L
Formula
L = B × 10,000
One billion is 10,000 lakh, so multiply the billion value by that factor. Here B is the value in billion and L is the result in lakh.
Worked example: 1 billion × 10,000 = 10,000 lakh.
Billion to lakh table
| billion (B) | lakh (L) |
|---|---|
| 1 B | 10,000 L |
| 2 B | 20,000 L |
| 3 B | 30,000 L |
| 4 B | 40,000 L |
| 5 B | 50,000 L |
| 6 B | 60,000 L |
| 7 B | 70,000 L |
| 8 B | 80,000 L |
| 9 B | 90,000 L |
| 10 B | 100,000 L |
| 15 B | 150,000 L |
| 20 B | 200,000 L |
| 25 B | 250,000 L |
| 30 B | 300,000 L |
| 40 B | 400,000 L |
| 50 B | 500,000 L |
| 60 B | 600,000 L |
| 75 B | 750,000 L |
| 100 B | 1,000,000 L |
Everyday billion in lakh
| What it is | B | L |
|---|---|---|
| 100 crore | 1 B | 10,000 L |
| a mid-size listed company | 5 B | 50,000 L |
| 1,000 crore | 10 B | 100,000 L |
| 10,000 crore | 100 B | 1,000,000 L |
| one trillion | 1,000 B | 10,000,000 L |
Quick estimate in your head
Multiply by 10^4: move the decimal point 4 places right (add 4 zeros).
Watch out for
- Billion here is the short scale, 10⁹. Older British usage once meant 10¹².
- Indian notation groups digits as 1,00,000; international notation writes the same number as 100,000.
About the units
Billion (B). 1,000,000,000 (10⁹), equal to 100 crore. The short-scale billion used today.
Lakh (L). 100,000 (10⁵), written 1,00,000 in Indian notation. Used for salaries and prices in India.
Going the other way, 1 lakh is 0.0001 billion.
Questions
How many lakh are in 1 billion?
1 billion is 10,000 lakh, and 1 lakh is 0.0001 billion.
How do I convert billion to lakh?
Use L = B × 10,000. For example, 1 billion × 10,000 = 10,000 lakh.
How are lakh and crore written with commas?
Indian notation groups the last three digits, then pairs: 1,00,000 is one lakh and 1,00,00,000 is one crore. Internationally the same numbers are 100,000 and 10,000,000.
How much is one trillion in lakh?
1,000 B is 10,000,000 L.
Source for the conversion factor: RBI glossary and Indian numbering conventions.