About this converter
The Indian numbering system uses lakh (1,00,000 = one hundred thousand) and crore (1,00,00,000 = ten million) as its principal large-number units, with arab (100 crore = 1 billion) for very large values. The international Western system uses thousand, million, billion, and trillion. Both refer to the same quantities — only the unit names and the comma grouping differ. This converter maps cleanly between the two systems and shows all units side-by-side for any value you enter.
Key relationships
| Indian unit | Numeric value | Western unit |
|---|---|---|
| 1 Lakh | 100,000 | 100 Thousand (0.1 Million) |
| 10 Lakh | 1,000,000 | 1 Million |
| 1 Crore | 10,000,000 | 10 Million |
| 10 Crore | 100,000,000 | 100 Million |
| 100 Crore (1 Arab) | 1,000,000,000 | 1 Billion |
| 1,00,000 Crore | 1,000,000,000,000 | 1 Trillion |
Worked example — converting a property price
A flat is listed at 2.5 crore. That is 2.5 × 10,000,000 = 25,000,000 rupees, or 25 million, or 250 lakh, or 0.025 billion. The converter above shows all of these instantly, plus the Indian-format string (2,50,00,000) and the Bangla-numeral form (২,৫০,০০,০০০).
Why the comma placement differs
The Indian system groups digits as 1,00,000 — three digits at the end, then commas every two digits going left. This mirrors the lakh / crore hierarchy. The Western system groups by thousands: 100,000 — commas every three digits. Bangladeshi and Indian government and financial documents typically use the Indian format; international filings use the Western format.