Web page design for pool dosage calculator

We have a swimming pool retail website.
I would like to setup a dosage calculator, it let's customer work out how much of a chemical they need for their pool or hot tub.

Here are some examples, I would like to be able to provide the user with all of the calculations from the sites below;

https://www.poolwarehouse.uk.com/index.php/swimming-pool-chemical-dosing-calculator/
https://www.aquachek.com/calculators/
https://pooloperationmanagement.com/resources/pool-calculator/
https://swimmingpoolchemicals.co.uk/dosing-calculator

We would then like to recommend some of our products from the site that they could purchase.
It should have professional and easy to use layout.
We would like to include it on our woocommerce website, so it could be in elementor or code in page.
If you have experience and you can do this please place a bid.

Thanks