Water and Sanitation Technologies: A Trainer's Manual (Peace Corps, 1985)
 Sessions
 Session 5 - Math review
 (introduction...) Attachment 5A: Conversion chart

### Attachment 5A: Conversion chart

Common Equivalents

* 1 cubic foot equals .0283 cubic meter
* 1 cubic foot equals 7.48 gallons
* 1 cubic foot of water equals 63.43 pounds
* 1 cubic yard equals. 7616 cubic meter
* 1 gallon equals 3.7854 liters
* 1 gallon equals 8.345 pounds of water
* 1 pound equals. 4536 kilogram
* 1 meter equals 39.37 inches
* 1 meter equals 3.2808 feet
* 1 meter equals 1.0936 yards
* 1 kilometer equals 3,281 feet
* 1 square meter equals 10.764 square feet
* 1 square meter equals 1.196 square yards
* 1 cubic centimeter equals 1 gram
* 1 cubic meter equals 35.314 cubic feet
* 1 cubic meter equals 1.308 cubic yards
* 1 liter equals 1.0567 quarts
* 1 liter of water equals 1 kilogram
* 1 kilogram equals 2.2046 pounds
* 1 atmosphere equals 14.7 psi at sea level
* 1 atmosphere equals 33.947 feet of water at 62 degrees F.
* 1 psi equals 2.309 feet of water at 62 degrees F.
* 1 psi equals .0703 kilograms per square centimeter
* 1 foot of water at 62 degrees F. equals .433 psi

Common Formulas

* To find the number of gallons in a Cylindrical Tank:
- Diameter in feet squared x. 7854 x 7.48

* To find the number of gallons in a Rectangular Tank:
- Length x Width x Height in feet x 7.48

* To find the Pressure in psi of a Column of Water:
- Height in feet x.434

* To find the Head in feet, the Pressure being known:
- Psi x 2.31

* To find the number of gallons in a foot of Pipe of any size:
- Square of the Diameter in inches x.0408

* To reduce Centigrade Temperature to Fahrenheit:
- Multiply the Centigrade temperature by 9, divide the result by 5, and add 32

* To reduce Fahrenheit Temperature to Centigrade:
- Subtract 32 from the Fahrenheit temperature, multiply by 5, and divide by 9

 Conversion Factors Multiply By To Obtain Centigrams .01 Grams Centiliters .01 Liters Centimeters .3937 Inches Centimeters .01 Meters Centimeters 10 Millimeters Centimeters/second 1.969 Feet/min. Centimeters/second .03281 Feet/sec. Centimeters/second .036 Kilometers/hr. Centimeters/second .6 Meters/min. Centimeters/second .02237 Miles/hr. Cubic Feet 1728 Cubic inches Cubic Feet .02832 Cubic meters Cubic Feet .03704 Cubic yards Cubic Feet 7.48 Gallons Cubic Feet 28.32 Liters Cubic Feet/minute 472.0 Cubic cms./sec. Cubic Feet/minute .1247 Gallons/sec. Cubic Feet/minute .4720 Liters/sec. Cubic inches 16.39 Cubic cms. Cubic Meters 1,000,000 Cubic cms. Cubic Meters 35.31 Cubic feet Cubic Meters 1.308 Cubic yards Cubic Meters 264.2 Gallons Cubic Meters 1,000 Liters Cubic Meters 1,057 Quarts Cubic Yards 27 Feet Cubic Yards 46.656 Cubic inches Cubic Yards .7646 Cubic meters Cubic Yards 202.0 Gallons Cubic Yards 764.6 Liters Cubic Yards 807.9 Quarts Decigrams .1 Grams Deciliters .1 Liters Decimeters .1 Meters Feet 30.48 Centimeters Feet 12 Inches Feet .3048 Meters Feet of water 304.8 Kgs./sq.meters Feet of water 62.43 Lbs./sq.ft. Feet of water .433 Lbs./sq.inch Feet/minute .5080 Cms./second Feet/minute .01667 Feet/second Feet/minute .3048 Meters/minute Feet/second 30.48 Cms./second Feet/second 18.29 Meters/minute Gallons 3785 Cubic cms. Gallons .1337 Cubic feet Gallons 231 Cubic inches Gallons 3.785 Liters Gallons 4 Quarts Gallons 8.345 Pounds of water Gallons/minute 2.228 x.001 Cubic feet/sec. Gallons/minute .06308 Liters/sec. Gallons/minute 8.0208 Cubic feet/hr. Grams .001 Kilograms Grams 1,000 Milograms Grams .03527 Ounces Hectares 2.471 Acres Inches 2.54 Centimeters Kilometers 100,000 Centimeters Kilometers 3,281 Feet Kilometers 1,000 Meters Kilometers .6214 Miles Kilometers 1,094 Yards Kilometers/hr. 16.67 Meters/minute Kilometers/hr. .6214 Miles/hr. Liters 1,000 Cubic cms. Liters .03531 Cubic feet Liters 61.02 Cubic inches Liters .001 Cubic meters Liters .2642 Gallons Liters 1.057 Quarts Meters 100 Centimeters Meters 3.281 Feet Meters 39.37 Inches Meters .001 Kilometers Meters 1.094 Yards Meters/minute 1.667 Cms./sec. Meters/minute 3.281 Feet/minute Meters/minute .05468 Feet/sec. Meters/second 196.8 Feet/minute Meters/second 3.281 Feet/second Miles 5,280 Feet Miles 1.609 Kilometers Miles 1,760 Yards Millimeters .1 Centimeters Millimeters .03937 Inches Ounces .0625 Pounds Ounces 28.349 Grams Pounds 16 Ounces Pounds 453.592 Grams Pounds/sq. Inch 2.307 Feet of water Pounds/sq. Inch .07031 Kg./sq. cm. Pounds/sq. Inch .7031 Meters of water Square Centimeters 100 Sq. millimeters Square Centimeters .0001 Sq. meters Square Centimeters .1550 Sq. inches Square Feet 929.0 Sq. cms. Square Feet 144 Sq. inches Square Feet .09290 Sq. meters Square Feet 1/9 Sq. yards Square Inches 6.452 Sq. cms. Square Inches 645.2 Sq. millimeters Square Meters 10.76 Sq. feet Square Meters 1.196 Sq. yards Square Yards 9 Sq. feet Square Yards .8361 Sq. meters Yards 91.44 Centimeters Yards 3 Feet Yards 36 - Inches Yards .9144 Meters