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Useful Technical Information

LIQUID MEASURE

cubic meter Litre millilitre Imp gallon U.S gallon cubic foot
1 1000 10 6 220 264.2 35.3147
0.001 1 1000 0.22 0.2642 0.0353
10 -6 0.001 1 2.2 * 10 -4 2.642 * 10 -4 3.53 * 10 -5
0.00455 4.5467 4546 1 1.201 0.1605
0.00378 3.785 3785 0.8327 1 0.1337
0.0283 37.31 28 317 6.2288 7.4805 1

VOLUMETRIC RATE OF FLOW

litre per sec litre per min cubic m per hr cubic foot per hr cubic foot per min Imp gallon per min U.S.galon per min U.S barrel per day
1 60 3.6 127.133 2.1189 13.2 15.85 543.439
0.017 1 0.006 2.1189 0.0353 0.22 0.264 90.57
0.278 16.667 1 35.3147 0.5886 3.666 4.403 150.955
0.008 0.472 0.0283 1 0.0167 0.104 0.125 4.275
0.472 28.317 1.6990 60 1 6.229 7.480 256.475
0.076 4.546 0.2728 9.6326 0.1605 1 1.201 41.175
0.063 3.785 0.2271 8.0209 0.1337 0.833 1 34.286
0.002 0.110 0.0066 0.2339 0.0039 0.024 0.029 1

FORCE

newton kilonewton kilogram force (kilopond) pound force
1 0.001 0.102 0.225
1000 1 101.97 224.81
9.807 0.0098 1 2.205
4.448 0.0044 0.454 1

GENERAL EQUIVALENTS

1 kilometer 1000 meters = 0.62137 miles
1 mile 1609.34 meters = 1.60934 kilometers
1 acre 4046.86 m squared = 0.404686 hectare
1 hectare 1.000 *10 000 m squared = 2.471 acre
1 U.S. Barrel 42 U.S. gallons (petroleum measure) = 34.97 Imp. Gallons = 0.159 m 3
1 litre 10 000 000 mm cubed = 10 000 cm 3 or 1 cubic decimeter
  1.76 U.K pints = 2.133 U.S. pints.
1 Pascal 1 newton per square meter
1 millimeter Hg is also called "torr"
1 joule 1 newton meter
1 watt 1 joule per sec = 1 newton meter per sec
Density 1 gram per cm 3 = 1000 kg per m 3 = 0.0361 pounds per inch 3
  1 kg per m 3 = 0.001 grams per m 3 = 0.0624 pounds per foot 3
Specific Volume 1 cm 3 per gram = 0.001 m 3 per kg = 27.68 inch 3 per pound
  1 m 3 per kg = 1000 cm 3 per gram = 16.0185 foot 3 per pound.
   
International standard atmosphere
  (1atm) = 101 325 pascals or 1.013 25 bar. This equals 1.033 23 kilogam force per cm 2 or 14.6959 pound force per inch 3
 
In meteorology 1 millibar = 100 pascal

Conversion Equivalents

These conversion equivalents are based generally on A.S. 1376 - 1974.
In some cases the degree of rounding has been adjusted.
 

Length

Millimeter mm centimeter cm meter m inch in foot ft yard yd
1 0.1 0.001 0.0394 0.0033 0.0011
10 1 0.01 0.3937 0.0328 0.0109
1000 100 1 39.3701 3.2808 1.0936
25.4 2.54 0.0254 1 0.0833 0.0278
304.8 30.48 0.3048 12 1 0.3333
914.4 91.44 0.9144 36 3 1

AREA

square mm square cm square meter square inch square foot square yard
1 0.01 10 -6 1.55 * 10 -3 1.076 * 10 -5 1.196 * 10 -6
100 1 10 -4 0.155 1.076 * 10 -3 1.196 * 10 -4
10 6 10 000 1 1550 10.764 1.196
645.16 6.4516 6.452 * 10 -4 1 6.944 * 10 -3 7.716 * 10 -4
92 903 929.03 0.093 144 1 0.111
836 127 8361.27 0.836 1296 9 1

PRESSURE & Liquid Head

  newton per m 2 kilopascal Bar kg force per cm 2 pound force per in 2
newton per m 2 1 0.001 10 5 1.02 * 10 5 1.45 * 10 -4
kilopascal 1000 1 0.01 1.02 * 10 -2 0.145
bar 100000 100 1 1.02 14.5
kg force per cm 2 98067 98.07 0.981 1 14.22
pound force per inch 2 9895 6.895 0.069 0.0703 1
ft of water 2984 2.984 0.03 0.0305 0.433
m of water 9789 9.789 0.098 0.1 1.42
mm of mercury 133.3 0.133 0.0013 0.0014 0.019
inch of mercury 3386 3.386 0.0338 0.0345 0.491

  

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