What should the site be about?
One keyword or topic. The agent finds the distinct calculators people search for around it.
Units
Button on every pageOptional
Rule-based calculators (tax, benefits, legal) are coming later.
Type a keyword like "concrete calculator". The agent finds every calculator people really search for around it, with real monthly searches, builds each one from a formula in code, writes the page around it and links them into a site you can publish on WordPress or your own domain. Every number is computed, never guessed.
One keyword or topic. The agent finds the distinct calculators people search for around it.