The Indian numbering system is used in India, Pakistan, Nepal, Sri Lanka, and Bangladesh to express large numbers, which differs from the International System of Units. Commonly used quantities include lakh (one hundred thousand, 10 5) and crore (ten million, 10 7) – written as 1,00,000 and 1,00,00,000 respectively in some locales. [1] For example: 150,000 rupees is "1.5 lakh rupees" which can be written as "1,50,000 rupees", and 30,000,000 (thirty million) rupees is referred to as "3 ... Learn how to write 1 lakh in numbers, words and scientific notation. Find out how many zeros are in 1 lakh and see examples of other lakh values. One lakh equal to 100,000 in numbers. We can write one lac consists of six digits that is “1” and five consecutive leading “0”. It is best practice to use thousand comma separator to understand the number easily. Lakh in Numbers: Use this tool to convert any amount of lakh to numbers and see how it is written.