UNITS CONVERSION TABLES

Overview These conversion tables are provided for your reference.

Units Conversion Tables Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Table 10 Table 11 Table 12 Table 13 Table 14 Table 15 Table 16

Multiples and Submultiples of SI Units Length Units Area Units Volume Units Mass Units Density Units Volumetric Liquid Flow Units Volumetric Gas Flow Units Mass Flow Units High Pressure Units Low Pressure Units Speed Units Torque Units Dynamic Viscosity Units Kinematic Viscosity Units Temperature Conversion Formulas

Table 1: Multiples and Submultiples of SI units Prefix Symbol Multiplying Factor 18 E 10 1 000 000 000 000 000 000 exa peta P 1015 1 000 000 000 000 000 12 tera T 10 1 000 000 000 000 giga G 109 1 000 000 000 6 M 10 1 000 000 mega kilo k 103 1 000 2 hecto* h 10 100 deca* da 10 10 -1 deci* d 10 0.1 centi 10-2 c 0.01 -3 milli 10 m 0.001 micro 10-6 u 0.000 001 -9 10 0.000 000 001 nano n pico 10-12 p 0.000 000 000 001 femto f 10-15 0.000 000 000 000 001 atto 10-18 a 0.000 000 000 000 000 001 * these prefixes are not normally used

Table 2: Length Units Millimeters Centimeters mm 1 10 1000 1000000 25.4 304.8 914.4 1609344

cm 0.1 1 100 100000 2.54 30.48 91.44 160934.4

Meters

Kilometers

Inches

Feet

Yards

Miles

m 0.001 0.01 1 1000 0.0254 0.3048 0.9144 1609.344

km 0.000001 0.00001 0.001 1 0.000025 0.000305 0.000914 1.609344

in 0.03937 0.393701 39.37008 39370.08 1 12 36 63360

ft 0.003281 0.032808 3.28084 3280.84 0.083333 1 3 5280

yd 0.001094 0.010936 1.093613 1093.613 0.027778 0.333333 1 1760

mi 6.21e-07 0.000006 0.000621 0.621371 0.000016 0.000189 0.000568 1

Table 3: Area Units Millimeter Centimeter square square 2 mm cm2 1 0.01 100 1 1000000 10000 645.16 6.4516 92903 929.0304 836127 8361.274

Meter square m2 0.000001 0.0001 1 0.000645 0.092903 0.836127

Inch square in2 0.00155 0.155 1550.003 1 144 1296

Foot square ft2 0.000011 0.001076 10.76391 0.006944 1 9

Yard square yd2 0.000001 0.00012 1.19599 0.000772 0.111111 1

Table 4: Volume Units Centimeter Meter Liter cube cube cm3 m3 ltr 1 0.000001 0.001 1000000 1 1000 1000 0.001 1 16.4 0.000016 0.016387 28317 0.028317 28.31685 3785 0.003785 3.79 4545 0.004545 4.55 158970 0.15897 159

Inch cube in3 0.061024 61024 61 1 1728 231 277 9701

Foot cube ft3 0.000035 35 0.035 0.000579 1 0.13 0.16 6

US gallons US gal 0.000264 264 0.264201 0.004329 7.481333 1 1.20 42

Imperial gallons Imp. gal 0.00022 220 0.22 0.003605 6.229712 0.832701 1 35

US barrel (oil) US brl 0.000006 6.29 0.00629 0.000103 0.178127 0.02381 0.028593 1

Table 5: Mass Units Grams

Kilograms

Metric tonnes

Short ton

Long ton

Pounds

Ounces

g 1 1000 1000000 907200 1016000 453.6 28

kg 0.001 1 1000 907.2 1016 0.4536 0.02835

tonne 0.000001 0.001 1 0.9072 1.016 0.000454 0.000028

shton 0.000001 0.001102 1.102293 1 1.119929 0.0005 0.000031

Lton 9.84e-07 0.000984 0.984252 0.892913 1 0.000446 0.000028

lb 0.002205 2.204586 2204.586 2000 2239.859 1 0.0625

oz 0.035273 35.27337 35273.37 32000 35837.74 16 1

Table 6: Density Units Gram/milliliter Kilogram/meter cube g/ml 1 0.001 0.01602 27.68

3

kg/m 1000 1 16.02 27680

Pound/foot cube 3

lb/ft 62.42197 0.062422 1 1727.84

Table 7: Volumetric Liquid Flow Units Meter Foot Liter/second Liter/minute cube/hour cube/minute L/sec L/min M3/hr ft3/min 1 60 3.6 2.119093 0.016666 1 0.06 0.035317 0.277778 16.6667 1 0.588637 0.4719 28.31513 1.69884 1 0.007867 0.472015 0.02832 0.01667 0.06309 3.785551 0.227124 0.133694 0.00184 0.110404 0.006624 0.003899

Foot cube/hour ft3/hr 127.1197 2.118577 35.31102 60 1 8.019983 0.2339

Pound/inch cube lb/in3 0.036127 0.000036 0.000579 1

US gallons/minute gal/min 15.85037 0.264162 4.40288 7.479791 0.124689 1 0.029165

US barrels (oil)/day US brl/d 543.4783 9.057609 150.9661 256.4674 4.275326 34.28804 1

Table 8: Volumetric Gas Flow Units Normal meter cube/hour Standard cubic feet/hour 3

Nm /hr 1 0.02832 1.699

Standard cubic feet/minute

scfh 35.31073 1 59.99294

Table 9: Mass Flow Units Kilogram/hour Pound/hour kg/h 1 0.4536 3600 1000

lb/hour 2.204586 1 7936.508 2204.586

scfm 0.588582 0.016669 1

Kilogram/second

Ton/hour

kg/s 0.000278 0.000126 1 0.277778

t/h 0.001 0.000454 3.6 1

Table 10: High Pressure Units Bar

Pound/square inch

Kilopascal

Megapascal

bar

psi

kPa

MPa

Kilogram force/ centimeter square kgf/cm2

1 0.06895 0.01 10 0.9807 0.001333 1.013

14.50326 1 0.1450 145.03 14.22335 0.019337 14.69181

100 6.895 1 1000 98.07 0.13333 101.3

0.1 0.006895 0.001 1 0.09807 0.000133 0.1013

1.01968 0.070307 0.01020 10.197 1 0.00136 1.032936

Millimeter of mercury

Atmospheres

mm Hg

atm

750.0188 51.71379 7.5002 7500.2 735.5434 1 759.769

0.987167 0.068065 0.00987 9.8717 0.968115 0.001316 1

Table 11: Low Pressure Units Meter of water mH2O

Foot of water ftH2O

Centimeter of mercury cmHg

Inches of mercury inHg

Inches of water inH2O

1 0.304813 0.135937 0.345299 0.025403 0.000102

3.280696 1 0.445969 1.13282 0.083339 0.000335

7.356339 2.242311 1 2.540135 0.186872 0.00075

2.896043 0.882753 0.39368 1 0.073568 0.000295

39.36572 11.9992 5.351265 13.59293 1 0.004014

Pascal Pa 9806 2989 1333 3386 249.1 1

Table 12: Speed Units Meter/second Meter/minute m/s 1 0.01667 0.2778 0.3048 0.00508 0.447

Kilometer/hour

Foot/second

Foot/minute

Miles/hour

km/h 3.599712 0.060007 1 1.097192 0.018287 1.609071

ft/s 3.28084 0.054692 0.911417 1 0.016667 1.466535

ft/min 196.8504 3.281496 54.68504 60 1 87.99213

mi/h 2.237136 0.037293 0.621477 0.681879 0.011365 1

m/min 59.988 1 16.66467 18.28434 0.304739 26.81464

Table 13: Torque Units Newton meter Kilogram force meter Nm 1 9.80665 1.35582 0.112985

kgfm 0.101972 1 0.138255 0.011521

Foot pound

Inch pound

ftlb 0.737561 7.233003 1 0.083333

inlb 8.850732 86.79603 12 1

Table 14: Dynamic Viscosity Units Centipoise*

Poise

Pound/foot·second

cp

poise

lb/(ft·s)

1 100 1488.16

0.01 1 14.8816

0.000672 0.067197 1

Table 15: Kinematic Viscosity Units Centistoke*

Stoke

Foot square/second

cs St ft2/s 1 0.01 0.000011 100 1 0.001076 92903 929.03 1 1000000 10000 10.76392 *note: centistokes x specific gravity = centipoise Table 16: Temperature Conversion Formulas Degree Celsius (°C) (°F - 32) x 5/9 (K - 273.15) Degree Fahrenheit (°F) (°C x 9/5) + 32 (1.8 x K) - 459.67 Kelvin (K) (°C + 273.15) (°F + 459.67) ÷ 1.8 November 2007

meter square/second m2/s 0.000001 0.0001 0.092903 1