Study Guides/Maths/Number and Unit Conversions
Study Guide ยท Maths

Common Number and Unit Conversions (Indian System)

Understanding how to convert between Indian number system (lakh, crore) and International system (million, billion) is essential for banking, business, and competitive exams.

Question (Click to Flip)

How many zeros are in 1 crore?

Answer

1 crore has 7 zeros โ€” it is written as 1,00,00,000.

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Key Facts

1 Lakh = 1,00,000 (1 followed by 5 zeros).

1 Crore = 1,00,00,000 (7 zeros).

1 Million = 10 Lakh.

1 Billion = 100 Crore.

50 Million = 5 Crore.

Indian Number System

NumberIndian WordsDigits
1,00,0001 Lakh6 zeros
11,00,00011 Lakhโ€”
15,00,00015 Lakhโ€”
1,00,00,0001 Crore7 zeros
2,00,00,0002 Croreโ€”
1,50,000One Lakh Fifty Thousandโ€”

150000 in words: One Lakh Fifty Thousand.

Indian vs International System

ValueIndian SystemInternational System
10,00,00010 Lakh1 Million
15,00,00015 Lakh1.5 Million
20,00,00020 Lakh2 Million
50,00,00050 Lakh5 Million
1,00,00,0001 Crore10 Million
5,00,00,00050 Crore500 Million = 50 Crore
1,00,00,00,000100 Crore1 Billion

Quick Reference

  • 1 Million = 10 Lakh = 10,00,000
  • 1 Billion = 100 Crore = 1,00,00,00,000
  • 50 Million in Crores = 5 Crore
  • 500 Million in Crores = 50 Crore
  • Zeros in 1 Crore: 7 zeros (1,00,00,000)

Questions and Answers

How many zeros are in 1 crore?+

1 crore has 7 zeros โ€” it is written as 1,00,00,000.

What is 1.5 million in Indian system?+

1.5 million = 15 lakh = 15,00,000.

What is 500 million in crores?+

500 million = 50 crore.

What is 150000 in words?+

150000 in words is 'One Lakh Fifty Thousand'.

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