Google apparently has a new . It will evaluate lots of different mathematical expressions, but my favorite feature is the conversions it can do. You can convert things like of figure out there are in half a cup. It'll even tell you more obscure things like my Toyota can produce or what the speed of light is in .

It's not quite perfect, though. I you want to, for example, calculate the
, then you'd be out of luck. It's still a pretty nice feature.