Google Search recently began showing the formula behind certain conversions such as mass, distance, etc. by displaying the conversion formula behind it. In a bid to add a little more convenience for users, Google search now directly shows the answer for certain queries without displaying any other search results.
Spotted today (via Sergey Alakov) and since confirmed by Google to Search Engine Land, searches that can be answered by the built-in calculator, unit converter, or clock will no longer feature other web links. This results in a simple page with only the Search bar up top and the answer below.
People who search for these tools rarely use full search results, but the results will remain available for those who want them via the “Show all results” button. Google confirmed today that this feature is now widely rolling out.
Related: Google Search Tips and Tricks