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Math help from the Learning Centre

This guide provides useful resources for a wide variety of math topics. It is targeted at students enrolled in a math course or any other Centennial course that requires math knowledge and skills.

Metric Measurements

The metric system is easy to learn and simply to use. There are only a few basic units, and they are generally related to each other by simple factors of 10. The metric system has a single unit for weight (grams), volume (litres), and another for length (metres). Smaller and larger units can be modified with a prefix. For example, kilo means 1000 times bigger, so a kilogram is 1000 grams and a kilometer is 1000 metres. 


Metric Abbreviations

Metric Base Unit Abbreviation Other Common Metric Abbreviations
litre, L millilitre, mL
gram, g kilogram, kg

Common Metric Equivalents in the Food-Service Industry

Weight (Mass) Volume (Liquid)
1 gram = 1000 milligrams 1000 milliliters = 1 litre
1000 grams = 1 kilogram

Conversions between U.S. Standard and Metric Measurements

Weight Conversion between U.S. Standard Measure and Metric Volume Conversion between U.S. Standard Measure and Metric
1 ounce = 28.35 grams 1 litre = 33.8 fluid ounces
1 kilogram = 2.21 pounds



Example 1

Convert 24 fluid ounces of concentrate to litres and then millilitres.


\[24\, fl.oz. \times \frac{1 L}{33.8\, fl.oz.} = 0.7101L\qquad (rounded\, to\, 4\, decimal\, places)\]

\[0.7101L \times \frac{1000mL}{1L} = 710.1mL \qquad (rounded\, to\, 1\, decimal\, place)\] 

Example 2

Convert 15 pounds to kilograms.


\[15\, lbs \times \frac{1 \,kg}{2.21\, lbs} = 6.7873 kg \qquad (rounded\, to\, 4\, decimal\, places)\]

Creative Commons License
Designed by Matthew Cheung. This work is licensed under a Creative Commons Attribution 4.0 International License.
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