The following unit conversion tables have been prepared by me after careful analysis of various regulatory documents. You can be assured that these tables comply with the latest IEC, ISA, IEE, BS and NEC standards.
Like this? Please share:
Units of Length
Millimeters Centimeters Meters Kilometers Inches Feet Yards Miles mm cm m km in ft yd mi 1 0.1 0.001 0.000001 0.03937 0.003281 0.001094 6.21*10-7 10 1 0.01 0.00001 0.393701 0.032808 0.010936 0.000006 1000 100 1 0.001 39.37008 3.28084 1.093613 0.000621 1000000 100000 1000 1 39370.08 3280.84 1093.613 0.621371 25.4 2.54 0.0254 0.000025 1 0.083333 0.027778 0.000016 304.8 30.48 0.3048 0.000305 12 1 0.333333 0.000189 914.4 91.44 0.9144 0.000914 36 3 1 0.000568 1609344 160934.4 1609.344 1.609344 63360 5280 1760 1
Table 1 — Length units Length converter ►
Units of Area
Millimeter square Centimeter square Meter square Inch square Foot square Yard square mm2 cm2 m2 in2 ft2 yd2 1 0.01 0.000001 0.00155 0.000011 0.000001 100 1 0.0001 0.155 0.001076 0.00012 1000000 10000 1 1550.003 10.76391 1.19599 645.16 6.4516 0.000645 1 0.006944 0.000772 92903 929.0304 0.092903 144 1 0.111111 836127 8361.274 0.836127 1296 9 1
Table 2 — Area units Units of Mass
Grams Kilograms Metric tonnes Short ton Long ton Pounds Pounds g kg tonne shton Lton lb oz 1 0.001 0.000001 0.000001 9.84 *10-7 0.002205 0.035273 1000 1 0.001 0.001102 0.000984 2.204586 35.27337 1000000 1000 1 1.102293 0.984252 2204.586 35273.37 907200 907.2 0.9072 1 0.892913 2000 32000 1016000 1016 1.016 1.119929 1 2239.859 35837.74 453.6 0.4536 0.000454 0.0005 0.000446 1 16 28 0.02835 0.000028 0.000031 0.000028 0.0625 1
Table 3 — Mass units Units of Volume
Centimeter cube Meter cube Liter Inch cube Foot cube US gallons Imperial gallons US barrel (oil) cm3 m3 ltr in3 ft3 US gal Imp. gal US brl 1 0.000001 0.001 0.061024 0.000035 0.000264 0.00022 0.000006 1000000 1 1000 61024 35 264 220 6.29 1000 0.001 1 61 0.035 0.264201 0.22 0.00629 16.4 0.000016 0.016387 1 0.000579 0.004329 0.003605 0.000103 28317 0.028317 28.31685 1728 1 7.481333 6.229712 0.178127 3785 0.003785 3.79 231 0.13 1 0.832701 0.02381 4545 0.004545 4.55 277 0.16 1.20 1 0.028593 158970 0.15897 159 9701 6 42 35 1
Table 4 — Volume units 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
Table 5 —Temperature conversion formulas Temperature converter ►
High Pressure Units
Bar Pound/square inch Kilopascal Megapascal Kilogram force/ centimeter square Millimeter of mercury Atmospheres bar psi kPa MPa kgf/cm2 mm Hg atm 1 14.50326 100 0.1 1.01968 750.0188 0.987167 0.06895 1 6.895 0.006895 0.070307 51.71379 0.068065 0.01 0.1450 1 0.001 0.01020 7.5002 0.00987 10 145.03 1000 1 10.197 7500.2 9.8717 0.9807 14.22335 98.07 0.09807 1 735.5434 0.968115 0.001333 0.019337 0.13333 0.000133 0.00136 1 0.001316 1.013 14.69181 101.3 0.1013 1.032936 759.769 1
Table 6 — High pressure units Low Pressure Units
Meter of water Foot of water Centimeter of mercury Inches of mercury Inches of water Pascal mH2 O ftH2 O cmHg inHg inH2 O Pa 1 3.280696 7.356339 2.896043 39.36572 9806 0.304813 1 2.242311 0.882753 11.9992 2989 0.135937 0.445969 1 0.39368 5.351265 1333 0.345299 1.13282 2.540135 1 13.59293 3386 0.025403 0.083339 0.186872 0.073568 1 249.1 0.000102 0.000335 0.00075 0.000295 0.004014 1
Table 7 — Low pressure units Units of Speed
Meter/second Meter/minute Kilometer/hour Foot/second Foot/minute Miles/hour m/s m/min km/h ft/s ft/min mi/h 1 59.988 3.599712 3.28084 196.8504 2.237136 0.01667 1 0.060007 0.054692 3.281496 0.037293 0.2778 16.66467 1 0.911417 54.68504 0.621477 0.3048 18.28434 1.097192 1 60 0.681879 0.00508 0.304739 0.018287 0.016667 1 0.011365 0.447 26.81464 1.609071 1.466535 87.99213 1
Table 8 — Speed units Torque Units
Newton meter Kilogram force meter Foot pound Inch pound Nm kgfm ftlb inlb 1 0.101972 0.737561 8.850732 9.80665 1 7.233003 86.79603 1.35582 0.138255 1 12 0.112985 0.011521 0.083333 1
Table 9 — Torque units Unit Prefixes in the International System of Units
Prefix Symbol Multiplying factor exa E 1018 or 1 000 000 000 000 000 000 peta P 1015 or 1 000 000 000 000 000 tera T 1012 or 1 000 000 000 000 giga G 109 or 1 000 000 000 mega M 106 or 1 000 000 kilo k 103 or 1 000 hecto h 102 or 100 deca da 10 or 10 deci d 10-1 or 0.1 centi c 10-2 or 0.01 milli m 10-3 or 0.001 micro u 10-6 or 0.000 001 nano n 10-9 or 0.000 000 001 pico p 10-12 or 0.000 000 000 001 femto f 10-15 or 0.000 000 000 000 001 atto a 10-18 or 0.000 000 000 000 000 001
Table 10 — Multiples and submultiples of SI units
