Google calculator with units

TALewis

Google has a neat calculator built into its search box. There is a good summary here:

http://www.google.com/help/calculator.html

Copy and paste the following queries to see it work:

Arithmetic operations:

sqrt((3*6/9)^2+7!)

Transcendental:

3*sin( 54 degrees )
2*log ( e / pi )

Complex numbers:

(3+7i)*(6-2i)

Unit conversions:

12 miles in kilometers
2400 joules in btu
34 degrees in radians

And now, the coolest part: physics calculations with universal constants and automatic units manipulation:

1 cm^2 * 15 feet per second in gallons per hour

1 kg * speed of light ^2

1/sqrt( permeability of free space * permittivity of free space )

sqrt( 2e-7 N/m * 2*pi * 1 m / permeability of free space )

( ( gravitational constant * earth mass / ( 2*pi / day )^2 )^(1/3) - radius of earth ) in miles

I know there are other tools out there that do this sort of thing (such as my TI-89), but having it on Google makes fun and easy to use for quick calculations.

Greg Bernhardt

Yeah that is pretty slick eh? You can also type in common equations and google will display a link to more information on it.

gazzo

google has everything. :/

http://www.google.com/jobs/lunar_job.html

chroot

I have been using the Google calculator here on PF for a long time now. If someone asks a question like "how is the speed of light related to [itex]\epsilon_0[/itex] and [itex]\mu_0[/itex]" I will reply with something like this:

I feel that this not only introduces the viewer to the Google calculator, it also helps him understand the relationship more numerically than symbolically. Altogether, Google's done us all a huge service.

- Warren

TALewis

Lately I've been wanting a Google currency converter, so I could enter queries like:

25 GBP in USD
10000 yen in USD

et cetera. I know there are sites and programs that will do those conversions, but Google is just so darn convenient.