You may already be aware that Google search provides a calculator that offers answers to queries, such as 2+2 directly, from the main search results page. As pointed out by a reader, Google recently updated the calculator search functionality, and it now provides a full HTML5 scientific calculator for these types of search queries. The features work with voice—except for on mobile devices, as they do not have access to the full scientific calculator presented on desktops.
Earlier this month, Google started to roll out a similar widget on its search page for unit conversions, like inches to centimeters. Now, unit conversion queries are presented with the live unit conversion tool (pictured below) that allows you to switch between units of measurements for temperature, length, mass, speed, digital storage, and much more.