Lakhs & Crores Converter
Convert lakhs and crores to millions, billions and rupees in one tap. Type any amount and see both comma styles, the value in words, and a digit-by-digit place-value breakdown. Exact place-value math, no exchange rate, no signup.
How it works
Lakh and crore belong to the South-Asian numbering system, while thousand, million and billion belong to the international short scale. The number itself never changes, only the unit you name it with and where the commas fall. This converter does exact place-value arithmetic: it multiplies your amount by its unit's power of ten to get the absolute number, then divides that by each other unit.
- Normalise to the absolute number. Each unit is a fixed power of ten, thousand = 103, lakh = 105, million = 106, crore = 107, billion = 109. Multiply your amount by its unit's factor. So 3.5 crore becomes 3.5 × 107 = 35,000,000.
- Re-express in every unit. Divide that absolute number by each factor: lakhs = N ÷ 100,000, crores = N ÷ 10,000,000, millions = N ÷ 1,000,000, billions = N ÷ 1,000,000,000. The result is shown trimmed of trailing zeros.
- Apply both comma styles. International grouping puts a comma every three digits (10,000,000). South-Asian grouping takes the last three digits, then groups the rest in pairs of two (1,00,00,000). Both describe the same integer.
- Format and spell it out. When “Show as Rs” is on, the same number is rendered as a rupee amount, no exchange rate is involved. The amount is also written in short-scale words (“Ten Million”) alongside the South-Asian reading (“One Crore”).
The key identities fall straight out of the exponents: a crore (107) is ten times a million (106), so 1 crore = 10 million; a crore is a hundred times a lakh (105), so 1 crore = 100 lakh; and a lakh is one-tenth of a million. Because everything is one multiplication and one division, there are no rates to go out of date and nothing to estimate. To avoid binary floating-point drift on values like 2.5 crore, the tool runs the arithmetic on whole-number integers scaled internally, then formats the result, so 2.5 crore is always exactly 25,000,000, not 24,999,999.99.
Worked examples
Quick reference
The most common South-Asian amounts in millions, billions and rupees. These rows are generated by the same conversion engine as the tool above, so they always agree with it.
| Amount | Millions | Billions | Rupees |
|---|---|---|---|
| 1 Lakh | 0.1 | 0.0001 | Rs 100,000 |
| 10 Lakh | 1 | 0.001 | Rs 1,000,000 |
| 1 Crore | 10 | 0.01 | Rs 10,000,000 |
| 10 Crore | 100 | 0.1 | Rs 100,000,000 |
| 100 Crore | 1,000 | 1 | Rs 1,000,000,000 |
Frequently asked questions
Sources & references
- Indian numbering system: lakh, crore magnitudes and comma grouping
- Long and short scales: short-scale million, billion definitions
- NIST: SI prefixes and powers of ten reference
The magnitudes and grouping rules used here are fixed conventions, last cross-checked against these sources on 2026-06-11. Lakhs and crores are not market data, so no rate ever needs updating.
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Comments & feedback
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