Metric Conversions - Questions

The Metric Conversions Concept Builder is comprised of 54 questions. The questions are divided into 18 different Question Groups and spread across three difficulty levels. Questions in the same group are rather similar to one another, involving the same type of unit conversion. The Concept Builder is coded to select at random a question from each group until a student is successful with that group of questions.

There are three difficulty levels that can be engaged in through the Concept Builder. Those three levels are differentiated as follows:
  • Apprentice Difficulty Level: Question Groups 1-6 ... Convert between a base unit and the kilo-, centi-, and milli derivative of that base unit. .
  • Master Difficulty Level: Question Groups 7-12 ... Convert between kilo-, centi-, and milli- derivatives of a base unit; for instance, convert from mL to cL or from km to mm.
  • Wizard Difficulty LevelI: Question Groups 13-18... Perform a variety of conversions between units; the units include kilo-, centi-, milli-, micro-, and nano- deriviatives of the base unit.

The questions from each group are shown below. Teachers are encouraged to view the questions in order to judge which difficulty levels are most appropriate for their classes. 

The Physics Classroom grants teachers and other users the right to print these questions for private use. Users are also granted the right to copy the text and modify it for their own use. However, this document should not be uploaded to other servers for distribution to and/or display by others. The Physics Classroom website should remain the only website or server from which the document is distributed or displayed. We also provide a PDF that teachers can use under the same conditions. We have included a link to the PDF near the bottom of this page.


Metric Conversions

Apprentice Difficulty Level
Question Group 1
Question 1
Convert 45 mL to L.
Question 2
Convert 86 mL to L.
Question 3
Convert 37 mL to L.
Question Group 2
Question 4
Convert 6.8 L to mL.
Question 5
Convert 9.2 L to mL.
Question 6
Convert 2.4 L to mL.
Question Group 3
Question 7
Convert 0.18 cm to m.
Question 8
Convert 0.25 cm to m.
Question 9
Covert 0.44 cm to m.
Question Group 4
Question 10
Convert 0.58 m to mm.
Question 11
Convert 0,92 m to mm.
Question 12
Convert 0.14 m to mm.
Question Group 5
Question 13
Convert 230 kg to g.
Question 14
Convert 320 kg to g.
Question 16
Convert 490 kg to g.
Question Group 6
Question 16
Convert 580 g to kg.
Question 17
Convert 910 g to kg.
Question 18 
Convert 730 g to kg.
Master Difficulty Level 
Question Group 7
Question 19
Convert 3200 cm to km.
Question 20
Convert 7500 cm to km.
Question 21
Convert 4900 cm to km.
Question Group 8
Question 22
Convert 2.9 km to cm.
Question 23
Convert 3.7 km to cm.
Question 24
Convert 1.8 km to cm.
Question Group 9
Question 25
Convert 0.0075 mL to cL.
Question 26
Convert 0.0083 mL to cL.
Question 27
Convert 0.0091 mL to cL.
Question Group 10
Question 28
Convert 0.0032 cL to mL.
Question 29
Convert 0.0041 cL to mL.
Question 30
Convert 0.0027 cL to mL.
Question Group 11
Question 31
Convert 0.025 kg to mg.
Question 32
Convert 0.018 kg to mg.
Question 33
Convert 0.052 kg to mg.
Question Group 12
Question 34
Convert 370 mg to kg.
Question 35
Convert5370 mg to kg.
Question 36
Convert 280 mg to kg.
Wizard Difficulty Level
Question Group 13
Question 37
Convert 690 nm to cm.
Question 38
Convert 550 nm to cm.
Question 39
Convert 430 nm to cm.
Question Group 14
Question 40
Convert .0000072 cm to nm
Question 41
Convert .0000052 cm to nm
Question 42
Convert .0000039 cm to nm
Question Group 15
Question 43
Convert 2.8 µg to g.
Question 44
Convert 6.7 µg to g.
Question 45
Convert 9.2 µg to g.
Question Group 16
Question 46
Convert .00045 g to µg.
Question 47
Convert .00036 g to µg.
Question 48
Convert .000459 g to µg.
Question Group 17
Question 49
Convert .45 mm to µm.
Question 50
Convert .78 mm to µm.
Question 51
Convert .81 mm to µm.
Question Group 18
Question 52
Convert 125 µm to mm
Question 53
Convert 225 µm to mm
Question 54
Convert 325 µm to mm


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