Convert attometer to foot (US survey)
Please provide values below to convert attometer [am] to foot (US survey) [ft (US)], or Convert foot (US survey) to attometer.
How to Convert Attometer to Foot (Us Survey)
1 am = 3.28083333334646e-18 ft (US)
Example: convert 15 am to ft (US):
15 am = 15 × 3.28083333334646e-18 ft (US) = 4.92125000001969e-17 ft (US)
Attometer to Foot (Us Survey) Conversion Table
| attometer | foot (US survey) |
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Attometer
An attometer is a unit of length in the metric system equal to 10^-18 meters.
History/Origin
The prefix "atto-" for 10^-18 was adopted by the CGPM (General Conference on Weights and Measures) in 1964.
Current Use
The attometer is used in high-energy physics to describe the scales relevant to quarks and leptons.
Foot (Us Survey)
The U.S. survey foot was a unit of length defined as exactly 1200/3937 meters.
History/Origin
The U.S. survey foot was used for land surveying in the United States for most of the 20th century. Its use was officially phased out in 2022 to standardize with the international foot.
Current Use
The U.S. survey foot is now an obsolete unit.