Lakh and crore are not a quirk of phrasing; they are a different grouping of digits, and that is what makes mistakes so easy. Indian numbering groups after the first three digits in twos, Western numbering groups in threes throughout. A number copied between the two systems without conversion can be out by a factor of ten before anyone notices.
If you work across an Indian team and an international client — or an Indian client and an international platform interface — this is worth five minutes once.
The lakh and crore conversions
- 1 lakh = 100,000 = one hundred thousand = 0.1 million
- 10 lakh = 1,000,000 = one million
- 1 crore = 10,000,000 = ten million = 100 lakh
- 10 crore = 100,000,000 = one hundred million
- 100 crore = 1,000,000,000 = one billion
The two anchors worth memorising are 10 lakh = 1 million and 1 crore = 10 million. Almost every conversion you need follows from those.
The written form differs too. Indian digit grouping writes one crore as 1,00,00,000 — commas after two digits once you pass the first three. Western grouping writes the same number 10,000,000. A spreadsheet set to the wrong locale will display one and store the other, which is how the errors get in.
If you would rather not do it in your head, we built a lakh and crore converter that handles both directions.
Where the mistakes actually happen
Budget approvals across a language boundary. A client approves "50 lakh for the quarter", someone enters 5,000,000 instead of 5,000,000 — or 500,000. One of those is right and the error is invisible in a spreadsheet cell.
Platform interfaces. Ads Manager shows ₹5,000,000, not ₹50 lakh. Somebody mentally reading in lakh and seeing Western grouping can drop or add a zero, particularly at the point of entering a daily budget where the number is smaller and the check is looser.
Media plans shared with overseas stakeholders. A plan in crore sent to a US client who reads it as a straightforward number produces a conversation at cross purposes that can last a whole call.
Reporting that mixes units. Spend in lakh, revenue in rupees, ROAS calculated from both. The ratio comes out wrong by a factor of a hundred thousand and the dashboard looks confident about it.
Four habits that stop it
- Pick one unit per document and state it in the header. "All figures in ₹ lakh" at the top of the plan removes nearly all the ambiguity.
- Never mix units in one table. If spend is in lakh, revenue is in lakh.
- Write out the full figure next to the shorthand in anything that triggers a payment. "₹50 lakh (₹5,000,000)" in the approval email costs four seconds.
- Set the spreadsheet locale deliberately and check that it matches the grouping everyone is reading.
When talking to overseas clients
Use their units in their documents. Indian teams often assume lakh and crore are universally legible because they are universal in India; outside South Asia they are not, and a client quietly doing unfamiliar arithmetic during your presentation is not following your argument.
Conversely, when an overseas client sends a budget in millions, restate it in lakh in your own internal notes before anyone enters it anywhere. The conversion should happen once, deliberately, at the boundary.
If the budget itself is the question rather than the units, how to split a marketing budget in India covers the allocation, and the Meta budget calculator works out what a campaign needs to clear the learning phase.
Questions people ask before hiring
How many lakh are in a million?
Ten. One lakh is 100,000, so 10 lakh equals one million. The other anchor worth memorising is that one crore equals ten million, or 100 lakh; almost every other conversion follows from those two.
How much is one crore in millions?
One crore is ten million — 10,000,000. One hundred crore is one billion. Written in Indian digit grouping a crore appears as 1,00,00,000, which is the same number as 10,000,000 in Western grouping.
Why do budget errors happen between these systems?
Because the two systems group digits differently — Indian numbering groups in twos after the first three digits — so a number copied without conversion can be out by a factor of ten, and a spreadsheet in the wrong locale displays one grouping while storing another.
How should budgets be written for an overseas client?
In their units, in their documents. Convert once, deliberately, at the boundary, and state the unit in the header of every plan. Writing the full figure next to the shorthand in any email that triggers a payment prevents most of the rest.