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How Many Zeros in a Shankh?

By Vinitha Published Updated

How many zeros in a shankh? A shankh has 17 zeros in the Indian numbering system: 1017 — equal to one hundred quadrillion (100,000,000,000,000,000) in the international system. The word "shankh" means conch shell in Sanskrit and Hindi, a symbol of auspiciousness in Hindu tradition. More on the extended Indian numbering scale: zeros in a neel.

A shankh has

17

zeros

Written Form
1 followed by 17 zeros
Scientific
10¹⁷
Western
100,000,000,000,000,000

Shankh's Position Between Padma and Mahashankh

The direct answer: exactly 17 zeros. The traditional Indian scale adds two zeros at each step, so shankh has two more zeros than padma (15) and two fewer than mahashankh (19).

How many zeros in a shankh? 17 zeros, written as 1,00,00,00,00,00,00,00,000 (10¹⁷).
How many zeros in a Shankh? — howmanyzeros.org
Padma through mahashankh on the extended Indian scale.
UnitZerosInternational equivalent
Padma151 quadrillion
Shankh17100 quadrillion
Mahashankh1910 quintillion

In the international system, 1017 sits between quadrillion (1015) and quintillion (1018), so shankh has no single equivalent international name. More on crore-to-million conversion: crore zeros.

What Is Shankh Equal to in Crore?

One shankh equals 100,000,000 crore — ten billion crore. Even the national GDP of India, expressed in tens of lakh crore, is still vastly smaller than one shankh.

Shankh's Position in the Extended Scale

Padma
1015 = 1 quadrillion
Shankh
1017 = 100 padma = 100 quadrillion
Mahashankh
1019 = 100 shankh = 10 quintillion

These upper units — neel, padma, shankh, mahashankh, ank — are rarely encountered in modern financial or scientific usage, appearing mainly in classical Sanskrit mathematical texts and comparative studies of numeration systems.

  • Padma (1015) — 1 quadrillion
  • Shankh (1017) — 100 padma = 100 quadrillion
  • Mahashankh (1019) — 100 shankh = 10 quintillion
  • Ank (1021) — 100 mahashankh = 1 sextillion

Watch: How Many Zeros in a Shankh?

How many zeros in a shankh? A shankh has 17 zeros — 1 followed by 17 zeros. Watch this short video for the zero count, the written form and the notation at a glance.

Watch on YouTube More number explainers

Zeros in a Shankh: FAQ

What comes before a shankh?
Quick answer

Padma comes right before a shankh — it takes 100 padma to make one shankh. To see the Indian-system name for 10⁹ and zero counts for 10 arab and larger multiples, read arab zeros.

What comes after a shankh?
Quick answer

Mahashankh comes next, equal to 100 shankh.

How many digits does a shankh have?

A shankh has 18 digits in total — that's the digit 1 followed by 17 zeros.

Is a shankh the same as any international unit?

No single word matches it exactly — a shankh is 100 quadrillion, or one-tenth of a quintillion.

How many zeros in shankh vs mahashankh?

Shankh has 17 zeros; mahashankh has 19.

How many shankh are in a mahashankh?

Exactly 100 shankh make one mahashankh.

About the Author

Vinitha

Vinitha

Designer and Developer · Palakkad, Kerala, India

Vinitha holds a bachelor's degree in Textile and Apparel Design from Avinashilingam University, plus a C-Tech certificate in Graphic Design from Image Creative Education. She builds free, no-clutter reference tools like How Many Zeros. Read her full bio.