Calculators and other free internet instruments have been around for a long moment and are no flash in the pan trick, but I see them now as one of the finest content-based cars to create true value connections.
A tool is a digital way of processing an action or offering ideas to explain–believe of Answer the Public or Buffer.
Calculators are a form of tool that processes data to offer an answer based on a set of variables. Think of: Percentage calculator.
How much concrete do I need? calculator.