Commonly Used Conversions




1. Temperature Conversions

  1. Fahrenheit (F) and Celsius (C):
    5(F-32)/9 = C

  2. Kelvin (K) and Celsius (C):
    K-273.15 = C

    PS.: Celsius = Centigrade.

2. Length Conversions

  1. 1 mil (not mile) = 1/1000 inch = 25.4 microns

  2. 1 mile = 5280 feet (ft.); 1 mile = 1.609 kilo-meter

  3. 1 yard (yd.) = 3 feet (ft.); 1 yard = 0.914 meter

  4. 1 meter = 1.093 yard

  5. 1 foot (ft.) = 12 inches; 1 foot (ft.) = 0.3048 meter.

3. Area Conversions

  1. 1 acre = 4046.87 square meters

  2. 1 acre = 4840 square yards = 43'560 square feet = 208.71 ft.x 208.71 ft.

  3. 1 square foot = 0.093 square meter

  4. 1 acre = 6.07 mu(3); 1 mu(3) = 1/15 hectare (ha)

  5. 1 square mile = 640 acres

  6. 1 section of land = 1 sq. mile.

4. Weight Conversions

  1. 1 pound (lb.) = 16 ounces; 1 pound = 453.59 grams

  2. 1 kilo-gram = 2.205 pounds

  3. 1 gram = 0.035 ounces.

5. Capacity Conversions

  1. 1 gallon (gal.) = 4 quarts

  2. 1 quart (qt.) = 2 pints (pts.)

  3. 1 gallon (gal.) = 3.785 liters

  4. 1 barrel (bbl.) = 31.5 gallons.

6. Miscellaneous

  1. 1 dozen = 12 units

  2. 1 score = 20 units

  3. 1 hand = 4 inches

  4. 1 knot = 6086 feet

  5. 1 meridian (1 degree of the earth's surface at the equator) = 69.16 miles

  6. 1 atmospheric pressure = 14.7 lbs./sq. in. at sea level.


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Last Updated: 2004, © J-B Huang