Basic Units of Measurement and Conversions - Basic Mathematics for Water and Wastewater Operators - page 53

TABLE 2.6 (continued)
Alphabetical List of Conversion Factors

Factor Metric (SI) or English Conversions

1 cm 3 (cc, cubic centimeter) 3.53 × 10 -5 ft 3 (cubic feet)

0.061 in. 3 (cubic inch)
2.64 × 10 -4 gal (gallon)
52.18 L (liters)
52.18 mL (milliliters)

1 day 24 hr (hours)

1440 min (minutes)
86,400 sec (seconds)
0.143 wk (week)
2.738 × 10 -3 yr (year)

1 dyne

1 × 10 -5 N (newton)

1 erg 1 dyn⋅cm (dyne-centimeter)

1 × 10 -7 J (joule)
2.78 × 10 -11 Wh (watt-hour)

1 eV (electron volt)

1.602 × 10 -12 erg
1.602 × 10 -19 J (joule)

1 fps (foot per second) 1.097 kmph (kilometers/hour)

0.305 mps (meter/second)
0.01136 mph (mile/hour)

1 ft (foot) 30.48 cm (centimeters)

12 in. (inches)
0.3048 m (meter)
1.65 × 10 -4 NM (nautical mile)
1.89 × 10 -4 mi (statute mile)

1 ft 2 (square foot) 2.296 × 10 -5 ac (acre)

9.296 cm 2 (square centimeters)
144 in. 2 (square inches)
0.0929 m 2 (square meter)

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 g (gram) 0.001 kg (kilogram)

1000 mg (milligrams)
1,000,000 ng = 10 6 ng (nanograms)
2.205 × 10 -3 lb (pound)

1 g/cm 3 (gram per cubic centimeter) 62.43 lb/ft 3 (pounds/cubic foot)

0.0361 lb/in. 3 (pound/cubic inch)
8.345 lb/gal (pounds/gallon)