INDEX OF UNITS Conversion Factors -- U.S. to Metric (SI) Units To Convert from To Multip& by angstrom meters (m) 1.000 000 E -10 atmosphere (normal) kilopascal (kPa) 1.013 25 x +2 bar kilopascal (kPa) 1.000 000 WE +2 E +3 barn meter® (m°) 1.000 000 British thermal unit (thermochemical ) joule (J) 1.054 350 cal (thermochemical) /cm megajoule/m (Md /m) 4.184 000 xfE -2 calorie (thermochemical) joule (J) 4.184 000 calorie (thermochemical) /g curie joule per kilogram (J/kg)* gigabecquerel (GBq)t 4.184 000 xfE +3 3.7000 000 & E +1 degree Celsius $ degree kelvin (K) t. = te degree (angle) radian (rad) 1.745 329 xff— -2 degree Fahrenheit degree kelvin (K) t electron volt joule (J) 1.602 19 x erg joule (J) 1.000 000 xffE -7 watt (WwW) 1.000 000 xffE -7 meter (m) 3.048 000 xffE -1 joule (J) 1.355 818 erg/second foot ' foot-pound-force qe -28 + P73.15 = (te + §59.67/1.8 — -19 gallon (U.S. liquid) meter>(m*) 3.785 412 xfe -3 jerk joule/kilogram (J/kg) (radiation dose absorbed) joule (J) gray (Gy)* 1.000 000 xfE +9 1.000 000 kilotons terajoules (TJ) 4.183 inch meter (m) 2.540 000 xffE -2 * The gray (Gy) is the accepted SI unit equivalent to the energy imparted ing radiation to a mass of energy corresponding to one joule/kilogram. [by ioniz- t The becquerel (Bq) is the SI unit of radioactivity; 1 Bq = 1 disintegratfion/s. 3 Temperature may be reported in degrees Celsius as well as degrees kelvin. 487