Fluid measurement conversion speaks to fluid calculations and fluid considerations are equivalents which are in common use in the hydraulics industry of today.
Exact equivalents
1 US gallon: = 231 cubic inches = 4 quarts or 8 pints = 128 ounces liquid = 133.37 ounces weight = 8.3356 pounds = 3.785 litres
1 Imperial gallon = 1.2 US gallons
1 Litre = 0.2642 US gallons
1 Cubic foot: = 7.48 gallons = 1728 cubic inches = 62.4 pounds (water)
1 Cu ft water weighs 62.4 lbs
1 Bar at sea level: = 14.504 PSI = 0.98692 atmosphere = 33.6 foot water column = 41 foot oil column
Approx ½ PSI decrease each 1000 feet of elevation.
1”Hg = 0.490 PSI = 1.131 ft water
1 Horsepower: = 33,000 ft lbs per minute = 550 ft lbs per second = 42.4 BTU per minute = 2545 BTU per hour = 746 watts or 0.746 kw
1 PSI: = 2.0416 “Hg = 27.7” water = 0.0689 bar
1 Atmosphere: = 1.013 bar = 29.921 “Hg = 14.696 PSI = 760 mm Hg
1 Foot water column = 0.432 PSI
1 Foot oil column = 0.354 PSI
1 Barrel oil = 42 gallons
1 Micro-meter: = 0.000001 meter (micron) = 0.001 centimeter = 0.00004 inch
25 Micro-meters = 0.001 inch
Approximate Equivalents
1 Pint = 2 cups = 32 tablespoons = 96 teaspoons = 16 fl oz = 1 lb
1 Quart = 4 cups = 2 pints = 32 fluid ounces = 2 pounds
1 Gallon = 16 cups = 4 quarts = 8 pints = 128 fluid ounces = 231 cubic inches
1 Cup = 16 tablespoons = 48 teaspoons
1 Tablespoon = 3 tsp = ½ fluid oz
1 Fluid oz (volume) = 600 drops hydraulic oil
1 Cubic inch = 330 drops (oil)
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