How Do You Say 1000000000000000? Explained in Short and Long Scale

Learn how to pronounce 1000000000000000 as 'one quadrillion' or 'one thousand billion' depending on the numeric scale used.

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The number 1000000000000000 is pronounced as 'one quadrillion' in the short scale (used in the United States and most English-speaking countries) or 'one thousand billion' in the long scale (used in countries where the metric system is standard).

FAQs & Answers

  1. What is the difference between short scale and long scale? The short scale names numbers based on thousands (e.g., billion = 1,000,000,000) and is used mainly in the United States, while the long scale names numbers based on millions (e.g., billion = 1,000,000,000,000) and is used in many other countries.
  2. How do you say 1,000,000,000,000,000 in English? In the short scale, 1,000,000,000,000,000 is pronounced as 'one quadrillion,' and in the long scale, it is said as 'one thousand billion.'
  3. Which countries use the long scale for large numbers? Many countries in Europe and those following the metric system traditionally use the long scale, including France, Germany, and many Spanish-speaking countries.

Watch More

For more insights into large number names and numeric scales, explore our videos on million, billion, trillion pronunciations and the differences between short and long scale systems.

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