Lakh and Crore Converter

Where the two scales part

Both systems count in powers of ten and both agree at a thousand. They separate immediately above it, and the separation never resolves. The international system takes its next step at a million (10⁶) and then moves in thousands — million, billion, trillion. The Indian system takes its next step at a lakh (10⁵) and then moves in hundreds — lakh, crore, arab, kharab.

That half-step is the entire difficulty. Because a lakh sits at 10⁵and nothing in the international system does, there is no word to translate it into: a lakh is “a hundred thousand”, a phrase rather than a name. Anyone mapping the two lists position by position — first word to first word, second to second — lands a factor of ten out and produces a figure that still looks entirely plausible.

The two systems do coincide again at 10⁹, where an arab equals a billion, and at 10¹² where a lakh crore equals a trillion. Those two coincidences are worth remembering precisely because they are the exceptions: everywhere between them, the place names do not line up.

Where the commas go, and what a comma means

Indian notation groups the last three digits together and then in pairs, so ten million is written 1,00,00,000 rather than 10,000,000. The value is identical; only the presentation differs. Digit grouping is a display convention, not part of the number, which is why this page shows both forms of the same result rather than picking one and calling the other wrong.

It matters more than typography, because readers do not count digits — they read the comma pattern. An Indian reader scanning 10,000,000 meets a grouping their eye does not parse and has to count; an international reader meets1,00,00,000 and does the same in reverse. Getting the grouping right is how a correct figure also becomes a readable one.

Input is the harder half, because the separators mean opposite things in different places. In the US, the UK and India, 1,234.56 is a thousand-odd; across most of continental Europe the same amount is written 1.234,56, with the roles of the two characters swapped. A parser that assumes the Anglo convention turns that European figure into 1.23456 — wrong by a factor of a thousand, with every digit still on screen and nothing to notice. So this converter detects the roles instead of assuming them: when both characters appear, the later one is the decimal point; a repeated separator can only be grouping. One shape stays genuinely ambiguous — 1,234is a thousand in London and one-and-a-bit in Berlin — and there the page says how it read your input and offers an explicit US / UK, European or Indian setting that removes the guess.

Figures you actually meet

Most conversions people look up come from a small set of places: a budget headline, a company result, a property listing, a salary package. The Government of India publishes its budget in crore, and the Reserve Bank publishes national statistics in lakh and crore, so these are the reporting convention rather than informal shorthand — which is why the conversion is asked as often by a reader in London or New York meeting the figure as by one in Delhi writing it.

The 2024-25 Union Budget put total expenditure at ₹48,20,512 crore. That is 48.20512 trillion, or — in the phrase Indian coverage actually used — about 48.2 lakh crore. All three describe one number, and a reader who has met only one of the three forms has no way to recognise the other two.

The one to commit to memory is the last: one lakh crore is one trillion. It is the point where the two systems meet again after diverging at a lakh, and it turns the most common Indian headline unit directly into the most common international one.

Why this is exact, and why that still needed care

Every conversion here is a power of ten. A lakh is exactly 10⁵ and a crore exactly 10⁷ — definitions, not measurements — so a scale conversion moves the decimal point and changes nothing else. The significant digits you type are the significant digits you get back, and there is no tolerance to argue about.

Being exact in principle is not the same as being exact in code. Indian budget and market figures are quoted in lakh crore, which is 10¹², and a rupee figure carried to paise adds two more digits. JavaScript’s ordinary numbers stop representing integers exactly above 9,007,199,254,740,991 — about 9 × 10¹⁵ — and past that they silently substitute the nearest value they can hold. A converter built on them renders 12345678901234567 as 12345678901234568 with no indication a digit changed.

So this page does its arithmetic on exact rationals over arbitrary-precision integers, the same core the site’s interest ledger uses. Results print at their exact length rather than rounded to a fixed number of decimals, because rounding a conversion that carries no error would be inventing one — and the engine’s test suite asserts a 17-digit conversion that a floating-point implementation provably gets wrong.

Reading it aloud

Written out, 1,23,45,678 is “1 crore 23 lakh 45 thousand 678”. Note the ending: Indian usage carries the final group as a plain three-digit number and does not break it further, so it is not “45 thousand 6 hundred 78”. Word renderers that insert a hundreds step produce something grammatical and unidiomatic — recognisably not how the figure is said.

The words form is what you want when a figure is going into running text, a cheque, or anything read aloud, where digits are ambiguous and a misplaced comma is invisible. It is also the fastest way to sanity-check a conversion: if the digits say one thing and the words say another, one of them was entered in the wrong scale.

Doing it in a spreadsheet

Scale conversion is a single multiplication, so a spreadsheet handles it directly: crore to million is =A1*10, lakh to million is =A1/10, and crore to units is =A1*10^7. Nothing here needs a lookup table.

Grouping is the part that fights back. Excel and Google Sheets group in threes by default, and a custom format is needed for the Indian pattern: [>=10000000]##\,##\,##\,##0;[>=100000]##\,##\,##0;##,##0 applies 2,2,3 grouping across the ranges where it differs. Google Sheets will also produce it by setting the spreadsheet locale to India rather than by formatting each cell.

Both tools inherit the same precision ceiling described above — a spreadsheet holds numbers as doubles, so a figure past about 9 × 10¹⁵ loses its trailing digits there too, and formatting will not bring them back. For anything beyond that, keep the value as text and convert a copy.

Scale, not currency

This converter changes the scale a number is written in. It does not change currency, and the two are worth keeping firmly apart. Restating ₹250 crore as ₹2.5 billion is exact and permanent — the same amount of rupees, differently written. Restating it in dollars, pounds or euros is neither: it depends on an exchange rate that moves continuously and is only meaningful with the date and source attached.

Doing both in one step is how a figure ends up unverifiable, because the exact half and the estimated half become impossible to separate afterwards. Convert the scale here, then apply a dated rate from your own source, and record which rate you used.

Related calculators

Tools that tend to be used on the same figure once it is in the scale you want:

More in Conversion, or browse all calculators.

Sources and methodology

Every figure on this page is computed from what you type — nothing is fetched and there is no live data feed behind it. The arithmetic is a power of ten and needs no authority, but the conventions do: which place names sit at which exponents, that Indian institutions publish in lakh and crore rather than colloquially, that digit grouping is presentation rather than value, and the precise integer limit past which floating-point arithmetic stops being exact. Those are what the sources below settle.

• Union Budget 2024-25 — Budget at a Glance, expenditure and receipts quoted in ₹ croreMinistry of Finance, Government of India · verified 2026-09-06 · That Government of India budget figures are published in crore and lakh crore as a matter of course, and the total-expenditure figure reproduced in the reporting-scale section
• Handbook of Statistics on the Indian Economy — data tables denominated in ₹ lakh and ₹ croreReserve Bank of India · verified 2026-09-06 · That the central bank publishes national statistics in the Indian scale, so lakh and crore are the reporting convention rather than a colloquialism
• Indian Numbering System — digit grouping and place namesEncyclopaedia Britannica · verified 2026-09-06 · The place-value names above thousand in the Indian system and their exponents
• ISO 80000-1:2022, Quantities and units — Part 1: General (clause on the decimal marker and digit grouping)International Organization for Standardization · verified 2026-09-06 · That digit grouping is a presentation convention distinct from the value itself, which is why the two comma styles here describe one identical number
• Number.prototype.toLocaleString — the en-IN locale and its 2,2,3 groupingMDN Web Docs, Mozilla · verified 2026-09-06 · That the Indian grouping is a recognised locale convention, and the reason this page implements it over BigInt rather than delegating to a float-backed formatter
• Number.MAX_SAFE_INTEGER — the 2^53 − 1 ceiling on exact integers in JavaScriptMDN Web Docs, Mozilla · verified 2026-09-06 · The 9,007,199,254,740,991 limit past which a float silently loses integer digits — the reason a lakh crore figure needs exact arithmetic
• TEXT function — custom number formats, and the limits of built-in locale formatsMicrosoft Support · verified 2026-09-06 · The custom format strings used in the spreadsheet section to produce Indian grouping where a locale format is unavailable