If you are a Google Chrome fan, then you need to install the Calculator browser extension. It gives you easy access to a very nice looking standard calculator (with big buttons) where you can use your keyboard or mouse to input your numerical data. I have found that I use this calculator frequently, due that it is readily accessible in my web browser (where I spend most of my computing time).
This is a standard calculator with a great productivity feature: You can put the result directly into the field you are currently on with a single click. No cutting and pasting required!
When on a field, click on the calculator icon on the toolbar and you will see a basic calculator with a ‘drop’ button (if you’re not on a text field, this button is not available). When finished with the calculation, click the drop button and the value is placed in the field your were on. You no longer need to cut and paste values from your calculator.
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