You can use shortcodes to show created calculators in some pages or posts.
First, copy the shortcode of the desired calculator:
Then go to the Pages > Add New to create a new page.
You can paste the shortcode that you copied to the front page. To add that shortcode, you can use any page builder plugin (Gutenburg, Elementor, WPBakery) or you can use special elements instead of shortcode.
We will consider possible options below:
First, let's see how to add a shortcode using any WordPress page builder:
In this page builder, there is a special element called Cost Calculator Builder, find that element and drag it.
Then select your calculator that you want to add to the page and click the Update button.
The result is following:
In WPBakery page builder, there is also a special element called Cost Calculator Builder, find that element, and choose your calculator.
After selecting the necessary calculator, press the Save changes button.
As a result, you can see the calculator when you preview the page.