Download free unit conversion resources, including printable charts, classroom slides, and educational reference sheets. These materials are designed for students, teachers, and anyone who wants a quick conversion reference.

Downloads

• Metric Prefixes Chart (PDF)
  A printable metric prefixes chart for quick reference in classrooms, homework, and labs.
• Metric - Imperial Conversions (PDF)
  A printable cheat sheet for conversions between metric and imperial units for quick reference in classrooms, homework, and labs.
• Temperature Conversion Chart (PDF)
  A free printable cheat sheet for conversions between tempereture units: Celsius, Fahrenheit and Kelvin.
• SI Base and Derived Units (PDF)
  A free downloadable chart of SI base and derived units and their symbols and descriptions.
• World of Measure - World's Measurement Systems (PDF)
  A free downloadable chart of world's measurement systems. A comparison of SI internatinal unit system, Imperial system, US customary system and selected traditional systems.
• Ancient Units of Measurement (PDF)
  A free downloadable poster showcasing ancient units from Egypt, Rome, Greece, Mesopotamia, India and China.
• The Story of Time (PDF)
  A free downloadable poster telling the story of time from ancient day divisions to atomic time.
• Astronomy Units - Measuring the Cosmos (PDF)
  Astronomy units poster with special units used in astronomy. Units like parsec, solar mass and astronomical unit explained. Free to download.