Quick Reference: Google Calculator (Cheat Sheet)by Nancy Blachman – nancy at googleguide.com (replace at with @) Solve mathematical problems with Google's built-in calculator function. Simply enter the expression you'd like evaluated in Google's web search box and hit the ENTER key or click the "Google Search" button.
BASIC ARITHMETIC OPERATOR   MEANING   TYPE INTO SEARCH BOX
+ or plus   addition   12 + 34 or three plus four
or minus   subtraction   3.4 - 5.6 or five minus two
* or times   multiplication   56 * 7 or six times nine
/ or divided by   division   7 / 8 or ten divided by two
% of or percent of   percentage of   45% of 39
mod or %   modulo (the remainder after division)   15 mod 9 or 15 % 9
^ or **   raise to a power   2^5 or 2**5
the nth root of   nth root   4th root of 16, sqrt(16), cube root of 109
reciprocal of   multiplicative inverse   reciprocal of 7 The following table lists some of the functions built into Google's calculator.
OPERATOR   FUNCTION   TYPE INTO SEARCH BOX
sin, cos, tan,
sec, csc, cot
trig functions (arguments are assumed to be in radians)   cos(pi/3)
cosine(pi/3)
arcsin, arccos, arctan, arccsc, etc.   inverse trigonometric functions   arccos(.5)
sinh, cosh, tanh, csch, arsinh, arccsch, etc.   hyperbolic functions   cosh(6)
ln   logarithm base e   ln(16)
log   logarithm base 10   log(16)
lg   logarithm base 2   lg(16)
exp   exponential function   exp(16)
!   factorial   5!
choose   x choose y calculates the number of ways of choosing a set of y elements from a set of x distinct elements   5 choose 3 CONSTANT   MEANING   TYPE INTO SEARCH BOX
e   base of the natural system of logarithms   e
pi   the ratio of the circumference to the diameter of a circle   pi/6
i   imaginary number, which represents one of the two square roots of -1   i^2
gamma   Euler's constant   e^gamma TIPS (adapted from Google's Online Calculator Help) Parentheses can be used whenever they'll serve to make complicated expressions unambiguous, and also sets of parentheses can be used within parentheses; don't use brackets for grouping. You can force the calculator to try to evaluate an expression by putting an equals sign (=) after it. This works only if the expression is arithmetically computable. For example, 1-800-555-1234= will return a result, but 1/0= will not (because dividing a non-zero number by zero is undefined and not computable). Parentheses can be used to enclose the parts of your expression that you want evaluated first. For example, (1+2)*3 causes the addition to happen before the multiplication. Google's calculator automatically balances unclosed parentheses. A missing operator within an expression may default to an *, e.g., 6cos(2pi). Feel free to experiment with the calculator as not all of its capabilities are listed here. UNITS OF MEASURE AND CONVERSIONS
Compute expressions involving different units. By default, units are converted to and results expressed in meter-kilogram-second (mks) units. Many units have both long and short names. Use whichever name you prefer.
TYPE OF UNITS   UNIT CONVERSION   EXAMPLES OF UNITS
old units in new units
Currency (money)   23 USD in Euros   US Dollars (USD), Euros, Britain Pounds (GBP)
Mass   130 lbs in kg   kilogram or kg, grams or g, grains, pounds or lbs, carats, stones, tons, tonnes
Length   3 miles in km   meters or m, miles, feet, Angstroms, cubits, furlongs
Volume   three quarters of a cup in teaspoons   gallons, liters or l, bushels, teaspoons, pints
Area   2 acres in sq km   square kilometers, acres, hectares
Temperature   98.6 Fahrenheit in Celsius or 98.6 f in c   Celsius or c, Fahrenheit or f
Time   1 year in seconds   days, seconds or s, centuries, sidereal years, fortnights
Electricity   100 volts in picovolts   volts or v, picovolts, amps or a, ohms, henrys
Energy   160 lbs * 4000 ft in Calories   Calories, British thermal units (BTU), joules, ergs, foot-pounds (Warning: When your query includes "Calories" with a capital "C," Google returns kilocalories called "calories" by nutritionists.)
Power   1 hp in watts, 500 V * 3 A in KW   watt or W, kilowatts or KW, megawatts or MW, horsepower or HP
Angle   90 degrees in radians
Information   2 bytes in bits   bits, bytes, kbytes
Quantity   1 great gross in dozens   dozen, baker's dozen, gross, great gross, score
Numbering Systems   1500 in hex
64 in binary
LVII in decimal
decimal, hexadecimal or hex, octal, binary, roman numerals (Prefix hexadecimal numbers with 0x, octal numbers with 0o and binary numbers with 0b, e.g., 0x7f + 0b100101) PHYSICAL CONSTANTS
The following table lists just a few of the many commonly used physical constants known to the calculator function.
SHORTHAND NOTATION   LONG NAME   CLICK LINK FOR AN APPROXIMATE VALUE
au   Astronomical Unit   au or astronomical unit
k   Boltzmann constant   k or Boltzmann constant
G   gravitational constant   G or gravitational constant
magnetic flux quantum   magnetic flux quantum
mass of a proton   mass of a proton
m_planet   mass of planet   m_Mars, m_Earth, m_Uranus, m_sun
molar gas constant   molar gas constant
permeability of free space   permeability of free space
h   Planck's constant   h or Planck's constant
r_planet   radius of planet   r_Earth, r_Pluto, r_sun
c   speed of light in a vacuum   c or speed of light
speed of sound in air at sea level   speed of sound  This reference is based on the Google Cheat Sheet with Google's permission.
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