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Lakh and crore to million and billion

India groups large numbers in lakhs and crores, while most of the world uses thousands, millions and billions. Here is how they line up.

Last reviewed: 25 October 2026

Conversion chart

IndianIndian formatInternational formatIn words
1 lakh1,00,000100,000100 thousand
10 lakh10,00,0001,000,0001 million
50 lakh50,00,0005,000,0005 million
1 crore1,00,00,00010,000,00010 million
10 crore10,00,00,000100,000,000100 million
100 crore1,00,00,00,0001,000,000,0001 billion
1 lakh crore1,00,00,00,00,0001,000,000,000,0001 trillion

Quick rules

Where the commas go

The Indian system puts the first comma after three digits from the right, then after every two digits: 1,23,45,678. The international system puts a comma after every three digits: 12,345,678. Both are the same number.

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Frequently asked questions

How many lakhs are in a million?

10 lakh make 1 million.

What is 1 billion in crore?

1 billion is 100 crore.

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Written and reviewed by the editorial team at Evavel Private Limited. Found an error? Email care@calculations.one.