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Data Series 284

U.S. GEOLOGICAL SURVEY
Data Series 284

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Conversion Factors and Datum

Conversion Factors

Multiply By To obtain
becquerel per liter (Bq/L) 27.027 picocurie per liter
centimeters (cm) 0.3937 inch
cubic meter (m3) 35.31 cubic foot
kilometer (km) 0.6214 mile
kilopascal (kPa) 0.1450 pound-force per square inch
liter (L) 0.2642 gallon
meter (m) 3.281 foot
meter per second (m/s) 3.281 foot per second
micrometer (µm) 0.000039 inch
millibar (mbar) 0.0145 pound per square inch
millimeter (mm) 0.03937 inch
millimeter per day (mm/d) 0.0397 inch per day
millimeter per hour (mm/h) 0.03937 inch per hour
Watts per square meter (W/m2) 0.005290 British Thermal Unit per square foot per minute

Temperature in degrees Celsius (°C) may be converted to degrees Fahrenheit (°F) as follows:

°F=(1.8×°C)+32.

Temperature in degrees Fahrenheit (°F) may be converted to degrees Celsius (°C) as follows:

°C=(°F-32)/1.8

Radiation: A unit of activity is a Curie (Ci), which is equivalent to 3.7 x 1010 disintegrations per second (dps); the standard disintegration rate of 1 gram of Radium. In International Units a Becquerel (Bq) is equivalent to 1 disintegration per second (dps). Thus, 1 Curie (Ci) equals 3.7 x 1010 Becquerels (Bq) or 37 gigaBecquerels (GBq).

Datum

In this report, “sea level” refers to the National Geodetic Vertical Datum of 1929 (NGVD of 1929, formerly called “Sea-Level Datum of 1929”), which is derived from a general adjustment of the first-order leveling networks of the United States and Canada.

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