To add a custom product from another page to woocommerce cart

So i have a page where there is a customisable product and i have created all the settings so that all the prices and everything is calculated in this page itself. So when one clicks on the Add to Cart button is it possible to send all these values to the woo-commerce cart to facilitate the checkout process and the shipping process etc.
The product cannot be created inside woocommerce hence i had to create it outside the woo-commerce environment. But i really need the rest of the things like user account, cart checkout and shipping to be inside woo-commerce.
So guys is there any way to do this.

Thanks in advance.