Basic Units of Measurement and Conversions - Basic Mathematics for Water and Wastewater Operators - page 59

TABLE 2.7 (continued)
Conversion Factors by Unit Category

Factor Metric (SI) or English Conversions

1 mi 2 (square mile) 640 acres

2.79 × 10 7 ft 2 (square feet)
2.59 × 10 6 m 2 (square meter)

Units of Volume

1 cm 3 (cubic centimeter)

3.53 × 10 -5 ft 3 (cubic feet)
0.061 in. 3 (cubic inch)
2.64 × 10 -4 gal (gallon)
0.001 L (liter)
1.00 mL (milliliter)

1 ft 3 (cubic foot) 28,317 cm 3 (cc, cubic centimeters)

1728 in. 3 (cubic inches)
0.0283 m 3 (cubic meter)
7.48 gal (gallons)
28.32 L (liters)
29.92 qt (quarts)

1 in. 3 (cubic inch) 16.39 cm 3 (cc, cubic centimeters)

16.39 mL (milliliters)
5.79 × 10 -4 ft 3 (cubic feet)
1.64 × 10 -5 m 3 (cubic meter)
4.33 × 10 -3 gal (gallon)
0.0164 L (liter)

1 m 3 (cubic meter) 1,000,000 cm 3 = 10 6 cm 3 (cc, cubic centimeters)

35.31 ft 3 (cubic feet)
61,023 in. 3 (cubic inches)
264.17 gal (gallons)
1000 L (liters)

1 yd 3 (cubic yard) 201.97 gal (gallons)

764.55 L (liters)

1 gal (gallon) 3785 cm 3 (cc, cubic centimeters)

0.134 ft 3 (cubic feet)
231 in. 3 (cubic inches)
3.785 L (liters)

1 L (liter) 1000 cm 3 (cc, cubic centimeters)

1 dm 3 (cubic decimeter)
0.0353 ft 3 (cubic feet)
61.02 in. 3 (cubic inches)
0.264 gal (gallon)
1000 mL (milliliters)
1.057 qt (quarts)

1 qt (quart) 946.4 cm 3 (cc, cubic centimeters)

57.75 in. 3 (cubic inches)
0.946 L (liter)