The Form Builder, which lets you add, edit, and remove fields and specify validation rules (required fields, email fields, etc…), includes three tabs: one for selecting fields, another for editing their attributes, and a third for defining settings.

WordPress Integration
The Calculated Fields Form is distributed as a WordPress plugin for versions 3.0.5 or higher. The free version of the plugin is distributed from the WordPress directory.

WooCommerce Integration
The WooCommerce add-on allows forms created with the “Calculated Fields Form” plugin to be integrated with WooCommerce products so that you can calculate the prices of products through the forms.