You can convert between units with just a few taps using Android's Smart Text Selection We're not entirely sure when the feature rolled out, but Android's Smart Text Selection has picked up the ability to do unit conversions. It's not as seamless as it could be, since results are displayed in the Google app rather than your current view, but it is faster than manual copying and pasting to do the conversion in another app yourself. In case you aren't familiar, Android has a pretty snazzy tool called Smart Text Selection. First revealed back in 2017, it lets you pass content quickly between apps rather than having to manually copy and paste. Tap and hold part of a phone number, for example, and Android will not just intelligently highlight the full number, it will offer to pass it to the Phone app to make a call. The same goes for addresses and many other types of content. It's incredibly convenient.