Appendix
Measurements and the Metric System
Measurements and the Metric System
Measurements and the Metric System  

Measurement  Unit  Abbreviation  Metric Equivalent  Approximate Standard Equivalent 
Length  nanometer  nm  1 nm = 10^{−9} m 

micrometer  µm  1 µm = 10^{−6} m  
millimeter  mm  1 mm = 0.001 m  
centimeter  cm  1 cm = 0.01 m  
meter  m 


kilometer  km  1 km = 1000 m  
Mass  microgram  µg  1 µg = 10^{−6} g 

milligram  mg  1 mg = 10^{−3} g  
gram  g  1 g = 1000 mg  
kilogram  kg  1 kg = 1000 g  
Volume  microliter  µl  1 µl = 10^{−6} l 

milliliter  ml  1 ml = 10^{−3} l  
liter  l  1 l = 1000 ml  
kiloliter  kl  1 kl = 1000 l  
Area  square centimeter  cm^{2}  1 cm^{2} = 100 mm^{2} 

square meter  m^{2}  1 m^{2} = 10,000 cm^{2}  
hectare  ha  1 ha = 10,000 m^{2}  
Temperature  Celsius  °C  —  1 °C = 5/9 × (°F − 32) 