Convert hectometer to attometer
Please provide values below to convert hectometer [hm] to attometer [am], or Convert attometer to hectometer.
How to Convert Hectometer to Attometer
1 hm = 1e+20 am
Example: convert 15 hm to am:
15 hm = 15 × 1e+20 am = 1.5e+21 am
Hectometer to Attometer Conversion Table
| hectometer | attometer |
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Hectometer
A hectometer is a unit of length in the metric system equal to 100 meters.
History/Origin
The prefix "hecto-" from the Greek "hekaton" meaning hundred, was part of the original metric system adopted in France in 1795.
Current Use
The hectometer is not a widely used unit of length in English-speaking countries. It is sometimes used in surveying and for marking distances on highways in some countries.
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.