Convert quarter (US) to attogram
Please provide values below to convert quarter (US) [qr (US)] to attogram [ag], or Convert attogram to quarter (US).
How to Convert Quarter (Us) to Attogram
1 qr (US) = 1.133980925e+22 ag
Example: convert 15 qr (US) to ag:
15 qr (US) = 15 × 1.133980925e+22 ag = 1.7009713875e+23 ag
Quarter (Us) to Attogram Conversion Table
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Quarter (Us)
A quarter (US) is a unit of weight equal to one-fourth of a pound, commonly used in measuring precious metals and other small quantities.
History/Origin
The quarter originated from the traditional British weight system and was adopted in the United States as a subdivision of the pound. It has historically been used in commerce and trade for precise measurements.
Current Use
Today, the quarter is primarily used in the United States for measuring precious metals, jewelry, and small quantities of certain commodities. It is part of the customary units in the 'Weight and Mass' category within common converters.
Attogram
An attogram (ag) is a unit of mass equal to 10^-18 grams, used to measure extremely small quantities.
History/Origin
The attogram was introduced as part of the metric system's expansion to include smaller units for scientific measurements, particularly in fields like nanotechnology and molecular biology, during the 20th century.
Current Use
Attograms are primarily used in scientific research to quantify very small masses, such as individual molecules or nanoparticles, and are part of the SI units for precise measurements in advanced scientific applications.