My Favorite Conversions and Equations

Commonly forgotten, yet well loved are the following:                                                           

Temperature:
    T(deg C) = (T(deg F) -32)*(5/9)
    T(deg C) = T(K)-273.15
Distance:
    1 mm = 0.0394 in.; 1 m = 3.281 ft; 1 km = 0.622 miles.
Volume:
    1 m^3=10^3 L = 35.31 ft^3; 1 US gallon = 3.785 L; 1 UK gallon = 4.546 L.

Latitude and longitude distance
   
Leap Years
Leap years are divisible by 4, except for years ending in 00, which are only
leap years if divisible by 400.
1904 1908 1912 1916 1920 1924 1928 1932 1936 1940 1944 1948 1952
1956 1960 1964 1968 1972 1976 1980 1984 1988 1992 1996 2000 2004



Last updated 06/01/2004 by Elizabeth Clark