section_path: Units and systems/Metric system/International System of Units/Converting prefixes
section_name: Converting prefixes
paragraph_text: Converting prefixes
  
  The SI allows easy multiplication when switching among units having the same base but different prefixes. To convert from metres to centimetres it is only necessary to multiply the number of metres by 100, since there are 100 centimetres in a metre. Inversely, to switch from centimetres to metres one multiplies the number of centimetres by 0.01 or divides the number of centimetres by 100.