Learn on PengienVision, Mathematics, Grade 5Chapter 12: Convert Measurements

Lesson 2: Convert Customary Units of Capacity

In this Grade 5 lesson from enVision Mathematics Chapter 12, students learn how to convert customary units of capacity — including fluid ounces, cups, pints, quarts, and gallons — by multiplying to change larger units to smaller units and dividing to change smaller units to larger units. Students apply these conversion relationships using multiplication with mixed numbers and division to solve real-world problems involving recipes and punch-making.

Section 1

Customary Units of Capacity

Property

The customary system uses specific units to measure capacity, which is the amount a container can hold.

1 cup (c)=8 fluid ounces (fl oz)1 \text{ cup (c)} = 8 \text{ fluid ounces (fl oz)}
1 pint (pt)=2 cups (c)1 \text{ pint (pt)} = 2 \text{ cups (c)}
1 quart (qt)=2 pints (pt)1 \text{ quart (qt)} = 2 \text{ pints (pt)}
1 gallon (gal)=4 quarts (qt)1 \text{ gallon (gal)} = 4 \text{ quarts (qt)}

Lesson overview

Expand to review the lesson summary and core properties.

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Section 1

Customary Units of Capacity

Property

The customary system uses specific units to measure capacity, which is the amount a container can hold.

1 cup (c)=8 fluid ounces (fl oz)1 \text{ cup (c)} = 8 \text{ fluid ounces (fl oz)}
1 pint (pt)=2 cups (c)1 \text{ pint (pt)} = 2 \text{ cups (c)}
1 quart (qt)=2 pints (pt)1 \text{ quart (qt)} = 2 \text{ pints (pt)}
1 gallon (gal)=4 quarts (qt)1 \text{ gallon (gal)} = 4 \text{ quarts (qt)}