The following list provides the necesary factors for converting U.S. Customary (inch-pound) units used in this National Water Summary to International System (metric) and other commonly used U.S. Customary units. Units, which are written in abbreviated form below, are spelled out in parentheses the first time that they appear. Most of the quantities listed are rounded to five significant figures. However, quantities shown in italics are exact equivalents - no rounding was necessary. To convert the unit in the left-hand column to that in the right, multiply by the number in the right-hand column, except for temperature. For temperature, use the equation provided.
The data in this list were adapted largely from information found in the
following publications:
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