If it can be calculated, we can design a calculator for it! Most simple calculators are written in Javascript, as are the three examples below. With a Javascript calculator, the results come back instantly without having to reload the page. Visitors like this kind of quick, responsive behaviour and enjoy being able to interact with your website.

More complex calculators, like the Metabolic Typing Self-Test at NutriNews.com require the collection of large amounts of data and are usually programmed with ColdFusion using a "wizard" that steps the visitor through the data collection process.

Often, it is a useful calculator that keeps them coming back. Take for example the high-traffic website drkoop.com. drkoop.com has many different kinds of calculators, both simple and "wizard" style, that make this site a favorite!

Calculator Examples