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Lesson

Lesson 2: Converting Units

In this lesson we will be going a step further by looking at common metric and household measures that are used in medication orders. The list below contains common conversions that you will see in healthcare. It is best to memorize them.

Abbreviations for measures.

cc = cubic centimeter g = gram
ml = milliliter L = liter
tsp = teaspoon lbs = pounds
oz = ounce kg = kilogram
jc = juice cup tc = tea cup
c = cup

Converting within the Metric System

See how Sal Khan does unit conversions within the metric system:

 

Converting Between Different Measurement Systems

Conversion Formulas

1 cc = 1 ml 5cc = 1 tsp
15 cc = 1tbsp 30 ml = 1 oz
1000 ml = 1 L 1000 mg = 1 g
2.2 lbs = 1 kg 1 c = 8 oz = 240 cc
1 tc = 6 oz = 180 cc 1 jc = 4 oz = 120 cc

Converting Measurements

Example 1: 5.5c = X ml

Step 1: Cross Multiply and solve for x.

Step 2: Eliminate units

Step 3:

Step 4:

Example 2: 128.5 lbs = X kg

Step 1:

Step 2:

Step 3:  Eliminate units

Step 4:

Step 5:

Attribution

Creative Commons License The text has been derived and modified from the "Dose Calculations" course by Tina Jackson and is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.

Creative Commons License The video "Unit conversion within the metric system" by Sal Khan is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. To see comments and other related activities please visit http://www.khanacademy.org.

Creative Commons License All other material in this work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. If you would like  to use this material, please provide attribution as follows: Richmond, J. (2016). https://www.ceces.ca/courses/med-math/. Continuing Education Centre for Emergency Services.

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