Quadrillion|Definition & Meaning


A thousand trillion is called a quadrillion. It is equal to 1,000,000,000,000,000 = 1000 x 1 trillion = 1000 x 1,000,000,000,000. We usually use scientific notation to represent it, which is a much more compact 1 x 1015.

A quadrillion is a number that has a 1 and then 15 zeroes after it. It is a very large number that is frequently used to describe incredibly enormous quantities or measurements in the fields of economics, science, and technology

In contrast, it is estimated that there are roughly 7.5 quadrillion grains of sand on Earth and that the world economy is worth about $90 quadrillion. A quadrillion is 1000 times bigger than a trillion and a million times bigger than a billion, to put it in context.

Quadrillion value in power of 10

Figure 1 – Quadrillion value as a power of 10

Comparison of Quadrillion To Other Significant Figures (Billion, Trillion, Etc.)

It’s crucial to consider the number of zeroes when comparing quadrillions to other huge numbers like billions and trillions. A billion is written as 1,000,000,000, which is a 1 followed by 9 zeroes. A trillion is expressed as 1,000,000,000,000, a 1 followed by 12 zeros.

A quadrillion is written as 1,000,000,000,000,000 and is made up of a 1 and 15 zeros.

topdown from one to Quadrillion

Figure 2 – Topdown from one to Quadrillion

Accordingly, a quadrillion is a million times bigger than a billion and a thousand times bigger than a trillion. \$1 quadrillion is equal to \$1,000 trillion and \$1,000 billion, for context.

The magnitude difference is fairly significant. when compared to other large numbers, a quadrillion is noticeably bigger and denotes an enormous amount or measurement.

One Quadrillion is equal to how many millions billions and trillions

Figure 3 – One Quadrillion is equal to how many millions, billions and trillions

The Significance of Understanding Huge Numbers

It’s crucial to comprehend enormous numbers, like a quadrillion, for a variety of reasons.

  1. Understanding the concept of a quadrillion can help us better understand the size of the universe and where we fit into it.For instance, it is estimated that there are more than a quadrillion stars in the observable universe, which is around $ 10^ {22} $ stars. This can help us understand just how tiny and unimportant our planet and humanity are in the grand scheme of things.
  2. The size of measures: In disciplines like economics and science, extraordinarily big amounts or measurements can be described by huge numbers like a quadrillion.We can better comprehend the intricacy and breadth of these domains by comprehending the magnitude of these numbers. For instance, it is estimated that the world economy is valued at about $90 quadrillion.
  3. Understanding large numbers can aid in our ability to comprehend the world we live in. To give you an idea of how big our planet is, consider that there are approximately 7.5 quadrillion grains of sand on Earth.Similar to the data explosion in recent years, the total amount of data recorded in the digital world is anticipated to reach 44 zettabytes by 2020. Being able to comprehend huge figures like a quadrillion can aid us in grasping the scope of the cosmos, the size of significant financial or scientific measurements, and the context of our surroundings.

Summary and Important Points

In conclusion, a quadrillion is a very large number that is frequently used in the fields of economics, science, and technology to express exceedingly huge quantities or measurements.

It is a number that symbolizes a 1 followed by 15 zeroes. It is one million times bigger than one billion and a thousand times bigger than one trillion.

Examples from the real world that highlight the significance of understanding large numbers and their significance in our understanding of the world include the size of the world economy, the number of sand grains on Earth, the number of stars in the observable universe, and the total amount of data stored in the digital universe.

It is crucial to keep learning about enormous numbers because they enable us to comprehend the size of significant monetary or scientific measurements and to appreciate the scope of the cosmos and our place within it. It is a little step in that direction to comprehend the meaning of a quadrillion.


Give some actual instances where trillions have occurred.


Quadrillion is a big number, however there are several instances of it in the actual world in many professions. Here are a few illustrations:

  1. It is estimated that the world economy is valued about $90 quadrillion. The total wealth of the entire planet, including cash, stocks, bonds, real estate, and other assets, is estimated here.
  2. About 7.5 quadrillion sand grains are thought to be present on Earth. It’s challenging to grasp just how much there is here.
  3.  About $ 10 ^ {22} $ stars, or 100 sextillion, are thought to exist in the observable universe. Given that it is substantially bigger than quadrillion, this quantity is equally challenging to understand.
  4. According to some research in the sphere of technology, the total amount of data that is currently kept in the digital universe is anticipated to reach 44 zettabytes (44 x $ 10 ^ {21} $ bytes) by 2020. Another huge number that is challenging to understand is this one.
  5. According to some insurance companies, the total value of all globally insurable property is around $217 quadrillion.
  6. The electromagnetic rays and gravitational waves arrived at the same time, demonstrating that their travel speeds are identical (to within one part in a quadrillion), disproving many competing gravity theories that predicted a difference.  Tom Siegfried, Discover, 9 January 2020
  7. A ronnabyte is 1,000,000,000,000,000 (or 1,000,000,000,000,000,000,000) terabytes in comparison to a terabyte, which is 1,000 gigabytes. —Mike Snider, USA TODAY, 22 November 2022
  8.  Creating some of the more exotic isotopes can have odds as high as 1 in a quadrillion, which is about the same as the likelihood of winning consecutive Mega Millions prizes. Artemis Spyrou, 14 November 2022, The Conversation
  9.  The corresponding units are quadrillion and quintillion terabytes, respectively. Mike Snider, November 22, 2022, USA TODAY
  10. To put it into perspective, the blink of an eye, which takes a third of a second, is a quadrillion times slower than that. WIRED, November 18, 2022
  11. While Ethereum Max initially had a 2 quadrillion token supply, its white paper states that in order to increase scarcity, the amount of tokens in circulation are reduced by 6% on a regular basis.Fortune, 3 October 2022, by Marco Quiroz-Gutierrez
  12. According to the U.S. EPA, both compounds are dangerous at parts per quadrillion amounts. Michael Hawthorne, 10 July 2022, Chicago Tribune
  13. Even the ultralight dark matter Antypas is hunting for could be more than a quadrillion times heavier than the particles at their lightest. Sophie Chen, Wired, August 2, 2022

These are some situations where the number quadrillion is used in the actual world. These figures are enormous and difficult to fathom, but they help put some of the things we take for granted in our world into perspective.

All images/mathematical drawings were created with GeoGebra.

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