When I need a quick calculation, I fire up the Mac calculator, get it done, and don’t think about it much. But for complex calculations such as currency conversations or splitting bills, I reach for a couple of tools online. Last week, I stumbled upon this minimal calculator called Numi. The best feature about it is you can simply type calculations in sentences to get your results, like ’50 INR to USD,’ or ‘today + two weeks.’ Plus, it’s easy to do unit and currency conversation so that you don’t have to take Google’s help for converting Indian Rupees to US Dollars… This story continues at The Next Web