# 2: Working with and Converting Measurements

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• 2.1: The US Measurement System
This system used to be called the English system, but now the U.S. has the dubious honor of being associated with the system that uses inches, feet, miles, ounces, pounds, cups, gallons, etc. To convert from one unit to another, we often have to perform messy calculations like dividing by 16 or multiplying by 5,280.
• 2.2: The Metric System
The metric system was first implemented following the French Revolution; if we’re overthrowing the monarchy, why should we use a unit of a “foot” that is based on the length of a king’s foot?
• 2.3: Converting Between Systems
Converting between the U.S. system and metric system is important in today’s global economy; like it or not, the metric system is infiltrating our lives.
• 2.4: Conversions with Time
• 2.5: Converting Units of Area
Converting between units of area requires us to be careful because square units behave differently than linear units.
• 2.6: Converting Units of Volume
Just as we saw with area, converting between units of volume requires us to be careful because cubic units behave differently than linear units.

2: Working with and Converting Measurements is shared under a CC BY-SA license and was authored, remixed, and/or curated by LibreTexts.