LENGTH:
1 micron (µ) = 0.00004 inch (in.)
1 millimeter (mm) = 0.039 inch (in.)
1 centimeter (cm) = 0.3937 inch (in.)
1 decimeter (dm) = 0.3281 foot (ft.)
1 meter (m) = 39.37 inch (in.)
1 meter (m) = 3.281 feet (ft.)
1 meter (m) = 1.0937 yards (yds.)
AREA – SQUARE:
1 square millimeter = 0.00155 square inch (sq. in.)
1 square centimeter = 0.155 square inch (sq. in.)
1 square decimeter = 15.5 square inch (sq. in.)
1 square decimeter = 0.10764 square foot (sq. ft.)
AREA – CUBIC:
1 cubic centimeter = 0.061 cubic inch (cu. in.) or (in.3)
1 cubic centimeter = 0.0002642 U.S. liquid gallons (gal.)
1 cubic decimeter = 61.023 cubic inch (cu. in.) or (in.3)
LIQUID MEASURE:
1 milliliter (ml) = 0.0338176 ounce (oz.)
1 deciliter (dl) = 3.381 ounce (oz.)
1 liter (l) = 1.0569 quarts (qt.)
1 liter (l) = 0.26417 gallon (gal.)
1 drop = 0.05 cubic centimeter (cc)
1 drop = 0.00169 ounce (oz.)
FLOW – LIQUID:
1 liter per minute (lpm) = 0.2642 U.S. gallon per minute (gpm)
WEIGHT:
1 gram (g) = 0.0353 ounce (oz.)
1 kilogram (kg.) = 2.2046 pounds (lb.)
1 metric ton = 0.9842 U.S. ton
TEMPERATURE:
°Celsius = 5/9 x (°Fahrenheit minus 32)
FORCE:
1 Newton (N) = 0.225 pound (lb.)
FREQUENCY:
1 cycle/second (cps) = 1 Hertz (Hz)
ABSOLUTE VISCOSITY:
1 centipoise (at 0.9 specific gravity) = 5.35 SUS
(Saybolt Universal Seconds)
POWER:
1 kilowatt (kw) = 1.34 horsepower (HP)
1 horsepower (HP) = 33,000 foot-pounds (ft. lbs.) per minute
1 horsepower (HP) = 550 foot-pounds (ft. lbs.) per second
1 horsepower (HP) = 42.4 BTU per minute
1 horsepower (HP) = 746 watts
PRESSURE:
1 bar = 14.5 pounds per square inch (psi),
above atmospheric
1 bar = 33.8 foot water column
1 bar = 42 foot oil column
1 bar = 29.92 inches of mercury (in. Hg)
1 bar = millimeter of mercury (mm Hg) = 0.03937 in. Hg,
below atmospheric
1 psi = 2.0416 in. Hg
1 psi = 27.71 in. water
1 foot column of water = 0.433 psi
1 foot column of oil = 0.390 psi
TORQUE:
1 Newton-meter (Nm) = 0.7375621 ft-lbs ≈ 0.738
(Machinery’s handbooks)
1 Newton-meter (Nm) = 8.8507542 lbs-in. ≈ 8.85 (x 12 in.)
VELOCITY:
1 meter per second (m/s) or (m/sec.) = 3.28 feet per second (fps) or (ft./sec.) or (ft. per sec.)