Lakh/Crore ⇄ Million/Billion Converter
India counts in lakh and crore; the rest of the world counts in million and billion. In the Indian numbering system a lakh is 100,000 and a crore is 10,000,000 — the two systems diverge after ten thousand, which is why a headline like “₹3.2 lakh crore package” stops most American readers cold. This converter is for anyone straddling the two notations: NRIs, US investors reading Indian filings or startup-funding news, and families discussing money across the India–US divide. Enter one number in any unit and this converter shows it in every unit at once — lakh, crore, million, billion, trillion — plus the digits grouped both the Indian way (12,34,56,789) and the international way (123,456,789), and the amount written out in words under both systems. Conversions stay exact deep into the trillions because the tool works on integers, not floating point.
| Unit | Value |
|---|---|
| Plain number | 10,000,000 |
| Thousand | 10,000 |
| Lakh | 100 |
| Million | 10 |
| Crore | 1 |
| Billion | 0.01 |
| Trillion | 0.00001 |
Indian words: one crore
International words: ten million
How to use the lakh/crore ⇄ million/billion converter
- Type the amount — plain digits or a decimal like 3.2 — and pick its unit (lakh, crore, million, billion…).
- Read the value in every other unit from the table; your input unit is highlighted.
- Check the Indian (2-2-3) and international (3-3-3) comma groupings and the words output below the table.
- Optionally enter your own USD–INR rate to translate the figure across currencies — the rate is yours, not a live feed.
The conversion table to memorize
Every lakh/crore conversion reduces to four anchor identities. Everything else is a power of ten away.
| Indian unit | Equals | In digits |
|---|---|---|
| 1 lakh | 100 thousand (0.1 million) | 1,00,000 |
| 1 crore | 10 million | 1,00,00,000 |
| 100 crore | 1 billion | 1,00,00,00,000 |
| 1 lakh crore | 1 trillion | 10,00,00,00,00,000 |
Decoding a news headline, step by step
Take “Government announces ₹3.2 lakh crore infrastructure outlay.” First convert the unit: 3.2 lakh crore = 3.2 × 10^12 = ₹3.2 trillion = ₹3,20,000 crore. Then, if you want a dollar sense of scale, apply your own rate: at ₹83 per dollar, 3.2 trillion ÷ 83 ≈ $38.55 billion. The reverse works the same way — when a startup raises “$150 million,” that is 15 crore dollars, and at ₹83 it is ₹1,245 crore (about ₹12.45 billion, though Indian media will almost always say crore, not billion).
Common conversion mistakes
- Confusing 10 crore with 1 billion. 10 crore is 100 million; you need 100 crore for a billion. The factor-of-ten slip is the single most common error in casual conversion.
- Treating “lakh” and “million” as interchangeable. They differ by 10×: 5 lakh is half a million, not five million.
- Misreading Indian commas with Western eyes. 12,34,56,789 looks like roughly 12 million if you assume 3-digit groups; it is actually 12.35 crore ≈ 123.5 million.
- Forgetting that “billion” once meant 10^12 in British usage. Modern usage everywhere, including India, is the short scale: billion = 10^9. Old documents may differ.
Frequently asked questions
How many lakhs make a million?
Ten. 1 million = 10 lakh, because a million is 1,000,000 and a lakh is 1,00,000 (100,000). Going the other way, 1 lakh = 0.1 million. So ₹25 lakh is 2.5 million rupees.
How many crores are in a billion?
100 crore = 1 billion. A crore is 10 million (1,00,00,000 = 10,000,000), so dividing a billion (1,000 million) by 10 million per crore gives 100. A company valued at $2 billion is worth 200 crore dollars — multiply by your exchange rate to get the rupee figure.
Why does India group digits as 12,34,56,789 instead of 123,456,789?
The Indian system places the first comma after three digits, then every two digits after that (the 2-2-3 pattern), because the named units above thousand step by hundreds: lakh is 100 thousand and crore is 100 lakh. The Western system steps by thousands (thousand, million, billion), so commas fall every three digits. Both write the same number; only the grouping differs.
What is a lakh crore?
1 lakh crore = 1,00,000 × 1,00,00,000 = 10^12, which is exactly 1 trillion. Indian budget and GDP figures are usually quoted in lakh crore: a ₹45 lakh crore budget is ₹45 trillion. At a rate of ₹83.5 per dollar that is about $539 billion.
Does the tool fetch a live USD–INR exchange rate?
No. The rate field is intentionally manual — you type the rate you want to use (from your bank, card statement, or a market quote) and the tool applies it both directions. That keeps the math transparent and avoids quoting a stale or mid-market rate that your bank will not actually give you.
How large a number can it handle accurately?
Exact integer results are computed with BigInt arithmetic, so values stay digit-perfect well past 1 trillion — into the quintillions for the words output. Beyond about 10^21, or when a decimal input does not resolve to a whole number, the tool falls back to scientific notation and clearly marks rounded values.
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