457Simple Math Conversion Factors
1 PSI = 2.31 Feet of Water LENGTH
1 Foot of Water = .433 PSI 12 Inches = 1 Foot
1.13 Feet of Water = 1 Inch of Mercury 3 Feet = 1 Yard
454 Grams = 1 Pound 5,280 Feet = 1 Mile
1 Gallon of Water = 8.34 Pounds AREA
1 mg/L = 1 PPM 144 Square Inches = 1 Square Foot
17.1 mg/L = 1 Grain/Gallon 43,560 Square Feet = 1 Acre
1% = 10,000 mg/L VOLUME
694 Gallons per Minute = MGD 1000 Milliliters = 1 Liter
1.55 Cubic Feet per Second = 1 MGD 3.785 Liters = 1 Gallon
60 Seconds = 1 Minute 231 Cubic Inches = 1 Gallon
1440 Minutes = 1 Day 7.48 Gallons = 1 Cubic Foot
.746 kW = 1 Horsepower 62.38 Pounds = 1 Cubic Foot of Water
Dimensions
SQUARE: Area (sq.ft) = Length X Width
Volume (cu.ft) = Length (ft) X Width (ft) X Height (ft)
CIRCLE: Area (sq.ft) = 3.14 X Radius (ft) X Radius (ft)
CYLINDER: Volume (Cu. ft) = 3.14 X Radius (ft) X Radius (ft) X Depth (ft)
PIPE VOLUME: .785 X Diameter^2 X Length = Area X 7.48 for Gallons
SPHERE: (3.14) (Diameter)^3 Circumference = 3.14 X Diameter
(6)
Flow Rate
Multiply —> to get
to get <— Divide
cc/min 1 mL/min
cfm (ft^3 /min) 28.31 L/min
cfm (ft^3 /min) 1.699 m^3 /hr
cfh (ft^3 /hr) 472 mL/min
cfh (ft^3 /hr) 0.125 GPM
GPH 63.1 mL/min
GPH 0.134 cfh
GPM 0.227 m^3 /hr
GPM 3.785 L/min
oz/min 29.57 mL/min
General Conversions
POUNDS PER DAY= Concentration (mg/L) X Flow (MG) X 8.34