Convert attometer to kilometer
Please provide values below to convert attometer [am] to kilometer [km], or Convert kilometer to attometer.
1 am = 1.0000e-21 km. To convert attometer to kilometer, multiply the value by 1.0000e-21; to go the other way, divide by it (1 km = 1.0000e+21 am). Both units measure length and appear in everyday as well as technical calculations, so switching between them quickly is often useful.
Quick Reference
- 1 am = 1.0000e-21 km
- 1 km = 1.0000e+21 am
- 10 am = 1.0000e-20 km
- 100 am = 1.0000e-19 km
How to Convert Attometer to Kilometer
1 am = 1e-21 km
Example: convert 15 am to km:
15 am = 15 × 1e-21 km = 1.5e-20 km
Attometer to Kilometer Conversion Table
| attometer | kilometer |
|---|---|
| 1 am | 1.0000e-21 km |
| 2 am | 2.0000e-21 km |
| 3 am | 3.0000e-21 km |
| 5 am | 5.0000e-21 km |
| 10 am | 1.0000e-20 km |
| 20 am | 2.0000e-20 km |
| 50 am | 5.0000e-20 km |
| 100 am | 1.0000e-19 km |
| 500 am | 5.0000e-19 km |
| 1000 am | 1.0000e-18 km |
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.
Kilometer
A kilometer is a unit of length in the metric system, equal to one thousand meters.
History/Origin
The term "kilometer" is derived from the Greek words "khilioi" (thousand) and "metron" (measure). The kilometer was first defined as part of the metric system in France in 1795.
Current Use
The kilometer is the most widely used unit of distance for road signs and travel distances in the world, with the notable exceptions of the United States and the United Kingdom.
Frequently Asked Questions
What is 1 attometer in kilometer?
1 attometer (am) = 1.0000e-21 kilometer (km).
How do you convert attometer to kilometer?
Multiply the attometer value by 1.0000e-21. For example, 25 am × 1.0000e-21 = 2.5000e-20 km.
What is 10 attometer in kilometer?
10 am = 1.0000e-20 km.
Which unit is larger, the attometer or the kilometer?
The kilometer is the larger unit: 1 am equals only 1.0000e-21 km.