A lakh (/læk, lɑːk/; abbreviated L; sometimes written lac[1]) is a unit in the Indian numbering system equal to one hundred thousand (100,000; scientific notation: 105).[1][2] In the Indian 2, 2, 3 convention of digit grouping, it is written as 1,00,000.[3] For example, in India, 150,000 rupees becomes 1.5 lakh rupees, written as ₹1,50,000 or INR 1,50,000.
It is widely used both in official and other contexts in Afghanistan, Bangladesh, Bhutan, India, Myanmar, Nepal, Pakistan, and Sri Lanka. It is often used in Bangladeshi, Indian, Pakistani, and Sri Lankan English.