Metric & U.S. Conversions

Metric & U.S. Conversions

Section 4.4

Metric & US Conversions

In technical work, you must sometimes convert between units.

The image to the right shows relative size between units.

Metric & U.S. Conversions

• In the U.S. system, the acre is the basic unit of land area.

• Historically, the acre was the ground that a yoke of oxen could plow in one day.

• 1 acre = 43, 560 ft²

• 1 mile² = 640 acres

• 1 km² = 247.11 acres

Metric & U.S. Conversion

Land areas in the U.S. are still typically measured in the U.S. system.

When converting between metric and U.S. land-area units, use the following relationship:

1 hectare = 2.47 acres

Multiple Choice

How many full cups are in a 2-L soft drink bottle?

1 L = 1.0567 quarts

2 pint = 1 quart

1 pint = 2 cups

• 10 full cups

• 8 full cups

• 6 full cups

• 12 full cups

Multiple Choice

How many inches is 9 meters?

1 meter = 39.37 inches

• 0.2286 inches

• 0.2286 meters

• 354.33 inches

• 354.33 meters

Multiple Choice

How many kilograms does 60 lb of sheet metal weigh?

1 kilogram = 2.2046 pounds

• 132.28 kg

• 132.28 lbs

• 27.22 kg

• 27.22 lbs

Multiple Choice

How many acres is 12 square kilometers?

1 km² = 247.11 acres

• 2965.32 acres

• 2965.32 km²

• 0.0486 acres

• 0.0486 km²