# Measurement

You can expect to see about 10 to 15 questions on the GED math test that evaluate your understanding of measurement and geometry.

When something is measured there is always a unit of measurement. In the United States we most often measure things in standard units, while most of the rest of the world uses the metric system. The standard units of measurement (with commonÂ abbreviationsÂ in parentheses) that you need to be familiar with for the GED math test are:

### Length

12 inches (in.) = 1 foot

3 feet = 36 inches = 1 yard (yd)

5,280 feet = 1,760 yards = 1 mile (mi)

### Capacity

8 ounces (oz) = 1 cup (c)

2 cups = 16 ounces = 1 pint (pt)

2 pints = 4 cups = 32 ounces = 1 quart (qt)

4 quarts = 8 pints = 16 cups = 128 ounces = 1 gallon (gal)

### Weight

16 ounces (oz) = 1 pound (lb)

2,000 pounds = 1 ton (T)

Time

60 seconds (sec) = 1 minute (min)

60 minutes = 1 hour (hr)

24 hours = 1 day

7 days = 1 week

52 weeks = 1 year (yr)

12 months = 1 year

365 days = 1 year

Note the smallest basic units of measurement for both capacity and weight are both referred to as ounces. However, an ounce of capacity and an ounce of weight signify, of course, totally different things. The ounce of capacity measures the amount of space something takes up while the ounce of weight measures how heavy something is.