1. Temperature Conversions
- Fahrenheit (F) and Celsius (C):
5(F-32)/9 = C
- Kelvin (K) and Celsius (C):
K-273.15 = C
PS.: Celsius = Centigrade.
2. Length Conversions
- 1 mil (not mile) = 1/1000 inch = 25.4 microns
- 1 mile = 5280 feet (ft.); 1 mile = 1.609 kilo-meter
- 1 yard (yd.) = 3 feet (ft.); 1 yard = 0.914 meter
- 1 meter = 1.093 yard
- 1 foot (ft.) = 12 inches; 1 foot (ft.) = 0.3048 meter.
3. Area Conversions
- 1 acre = 4046.87 square meters
- 1 acre = 4840 square yards = 43'560 square feet = 208.71 ft.x 208.71 ft.
- 1 square foot = 0.093 square meter
- 1 acre = 6.07 mu(3); 1 mu(3) = 1/15 hectare (ha)
- 1 square mile = 640 acres
- 1 section of land = 1 sq. mile.
4. Weight Conversions
- 1 pound (lb.) = 16 ounces; 1 pound = 453.59 grams
- 1 kilo-gram = 2.205 pounds
- 1 gram = 0.035 ounces.
5. Capacity Conversions
- 1 gallon (gal.) = 4 quarts
- 1 quart (qt.) = 2 pints (pts.)
- 1 gallon (gal.) = 3.785 liters
- 1 barrel (bbl.) = 31.5 gallons.
6. Miscellaneous
- 1 dozen = 12 units
- 1 score = 20 units
- 1 hand = 4 inches
- 1 knot = 6086 feet
- 1 meridian (1 degree of the earth's surface at the equator) = 69.16 miles
- 1 atmospheric pressure = 14.7 lbs./sq. in. at sea level.
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Last Updated: 2004, © J-B Huang