## Conversion Factors

 Length To convert from the unit in the left column to the unit along the top row, multiply by the number in the cell where the two desired units meet. For example, to convert 10 kilometers to miles, multiply 10 by 0.6214 to get 6.214 mi. × by cm in ft yd m km mi cm --- 0.3937 0.03281 0.01094 0.01 0.00001 6.214×10-6 in 2.54 --- 0.0833 0.0278 0.0254 0.0000254 4.009×10-5 ft 30.48 12 --- 0.3333 0.3048 0.0003048 0.0001894 yd 91.44 36 3 --- 0.9144 0.0009144 0.0005682 m 100 39.370 3.2808 1.0936 --- 0.001 0.0006214 km 100000 39370 3280.8 1093.6 1000 --- 0.6214 mi 160934.4 63360 5280 1760 1609.344 1.609344 ---
 Volume To convert from the unit in the left column to the unit along the top row, multiply by the number in the cell where the two desired units meet. For example, to convert 10 gallons to liters, multiply 10 by 3.785 to get 37.85 L. × by cm3/mL fl. oz cups pints quarts dm3/L gal cm3/mL --- 0.03381 0.0042268 0.0021134 0.0010567 0.001 0.0002642 fl. oz 29.577 --- 0.125 0.0625 0.03125 0.029573 0.0078125 cups 236.59 8 --- 0.5 0.25 0.23659 0.0625 pints 472.72 16 2 --- 0.5 0.47318 0.125 quarts 946.34 32 4 2 --- 0.94635 0.25 dm3/L 1000 33.814 4.2429 2.1134 1.0567 --- 0.26417 gal 3785.0 128 16 8 4 3.7850 ---
 Energy To convert from the unit in the left column to the unit along the top row, multiply by the number in the cell where the two desired units meet. For example, to convert 10 calories to joules, multiply 10 by 4.184 to get 41.84 J. × by eV J cal eV --- 1.602×10-19 3.829×10-20 J 6.242×1018 --- 0.2390 cal 2.612×1019 4.184 ---
 Temperature To convert from the unit in the left column to the unit along the top row, follow the operation(s) in the cell where the two desired units meet. For example, to convert 100°C to °F, multiply 100 by 1.8 and then add 32 to get 212°F. K °C °F K --- K - 273.15 1.8K - 459.67 °C C + 273.15 --- 1.8C + 32 °F (F + 459.67)/1.8 (F - 32)/1.8 ---
 Pressure To convert from the unit in the left column to the unit along the top row, multiply by the number in the cell where the two desired units meet. For example, to convert 10 atm to torr, multiply 10 by 760 to get 7600 torr. × by atm psi in Hg kPa torr mm Hg mbar atm --- 14.696 29.925 101.325 760 760 1013.25 psi 0.06805 --- 2.0363 6.8947 51.715 51.715 68.947 in Hg 0.03342 0.4911 --- 3.3860 25.397 25.397 33.860 kPa 0.009869 0.14504 0.29534 --- 7.5006 7.5006 10 torr 0.001316 0.01934 0.039375 0.13332 --- 1 1.3332 mm Hg 0.001316 0.01934 0.039375 0.13332 1 --- 1.3332 mbar 0.0009869 0.01450 0.02953 0.1 0.75006 0.75006 ---