It all adds up: Google Calculator hits Google Play Store
The scientific calculator function is also available with the phone in portrait by swiping to the left. A panel will slide out containing all of the buttons required for more complex computations. And yes, the app does support Android Wear.
If you're unhappy with the calculator that comes on your Android phone, you can always install the official Google Calculator from the Google Play Store. And you won't need a calculator to figure out how much it will cost you since the app is free.
To install the Google Calculator simply click on the sourcelink below.
source: GoogleCalculator via AndriodAuthority