Centimeter to Astronomical Unit Conversion
Convert between Centimeter and Astronomical Unit quickly and accurately.
How to Convert Centimeter to Astronomical Unit
Conversion Formula
Example
Convert 15 cm to AU:
Unit Information
Learn about the length units you're converting between
Centimeter
cm
Definition
A centimeter (symbol: cm) is a unit of length in the metric system, equal to one hundredth of a meter (0.01 m). It is commonly used for measuring small distances and is particularly useful for measurements that fall between millimeters and meters.
History/Origin
The centimeter was introduced as part of the metric system in France in the late 18th century. The prefix "centi-" comes from the Latin word "centum," meaning "hundred." It became widely adopted as a practical unit for everyday measurements.
Current Use
Centimeters are extensively used in everyday life for measuring height, clothing sizes, furniture dimensions, and small objects. They are also used in scientific applications, medical measurements, and engineering where precision is needed but meters would be too large.
Multiplier
0.01
Offset
0
Astronomical Unit
AU
Definition
An astronomical unit (symbol: AU) is a unit of length used in astronomy, equal to the average distance between Earth and the Sun. It is approximately 149.6 million kilometers (93 million miles). The AU is the standard unit for measuring distances within the solar system.
History/Origin
The astronomical unit was first estimated by ancient astronomers using observations of planetary positions. The modern value was determined through radar measurements of Venus and Mercury in the 1960s. It was redefined in 2012 to be exactly 149,597,870,700 meters.
Current Use
The astronomical unit is used throughout astronomy for measuring distances within the solar system, planetary orbits, and spacecraft trajectories. It is essential for space mission planning, planetary science, and understanding the scale of our solar system.
Multiplier
149597870691
Offset
0
Centimeter to Astronomical Unit Conversion Table
| Centimeter [cm] | Astronomical Unit [AU] |
|---|---|
| 1 cm | 7E-14 AU |
| 10 cm | 7E-13 AU |
| 25 cm | 2E-12 AU |
| 50 cm | 3E-12 AU |
| 100 cm | 7E-12 AU |
| 0 cm | 0E+0 AU |
| -10 cm | -7E-13 AU |
| -40 cm | -3E-12 AU |
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