Calculator Google
Contributed by davak 
September 15, 2003 
Tagged: Google
Use Google as a calculator
Google now will do several calculator type functions.
Basic arithmetic:
Google: 1+2
Trig:
cos(1/2)
Factorials:
25!
Convert/calculate in different bases such as binary, octal, hex, and decimal:
Google: 32 in binary
Google knows constants:
e
pi
Planck’s Constant
Speed of Light
Gravitational Constant
Avogadro’s Number
Radius of the Earth
Radius of the Sun
Mass of the sun plus the mass of the earth
Google does conversions:
I’ve noticed that it at least knows these –feet, inches, miles, meters, light years, pints, quarts, tablespoons, teaspoons, gallons, liters, grams, pounds, angstroms and the associated metric prefixes such as centi, kilo, etc.
Google: 4 tons in decigrams
What else have you discovered?