Debt Payoff Calculator is a simple set of PHP scripts that will allow users of a web site to enter their monthly income, monthly budget, and outstanding debts.

The Calorie Burning Calculator is a free, nicely-formatted online calculator to help your web site visitors calculate how many calories they require a day to maintain their body weight, or basal metabolic rate (BMR).

Quick Health Calculator is a little calculator you can add to your web page to give your visitors a way to measure their BMI and size-related health risks.