Centimeter (cm)
Definition: A centimeter (cm) is one-hundredth of a meter, making it useful for measuring smaller objects. It provides a convenient unit for everyday applications like measuring body height, book dimensions, and clothing sizes.
History: The centimeter was introduced alongside the metric system to replace inconsistent length units like inches and spans. It became widely accepted due to its ease of use in smaller measurements.
Current Use: Centimeters are used extensively in education, construction, and tailoring. It is the standard unit for rulers and commonly appears in scientific research, engineering, and daily measurements like furniture dimensions.
Megameter (Mm)
Definition: A megameter (Mm) is a unit of length equal to one million meters (10^6 meters). It is used to measure large distances in both geography and astronomy.
History: The megameter was introduced alongside other metric units to standardize measurements of large distances. It has been mainly used in astronomical contexts to simplify expressions of distances in space.
Current Use: Megameters are used in astronomy to describe distances between astronomical objects such as the Earth and the Sun. They also appear in some applications in geology and planetary science.
Quick Conversion Table Centimeter (cm) to Megameter (Mm)
1 Centimeter (cm) equal to 0.00000001 Megameter (Mm)
5 Centimeter (cm) equal to 0.00000005 Megameter (Mm)
10 Centimeter (cm) equal to 0.0000001 Megameter (Mm)
20 Centimeter (cm) equal to 0.0000002 Megameter (Mm)
30 Centimeter (cm) equal to 0.0000003 Megameter (Mm)
50 Centimeter (cm) equal to 0.0000005 Megameter (Mm)
75 Centimeter (cm) equal to 0.00000075 Megameter (Mm)
100 Centimeter (cm) equal to 0.000001 Megameter (Mm)