The Calculator Site features a collection of conversion and calculation tools for everyday use. Conversions are available for everything from area to volume and weight. In addition, tools are provided for calculating cubic feet and square footage. In the finance calculators section, you can calculate compound interest on your savings, repayment options on a loan or plan your retirement. Health calculation tools include BMI and BMR calculators.
CSG NETWORK features various on-line calculators that they have designed for other sites... all fully functional and waiting for you! These include construction and remodeling calculators, converters and tables, plus a wide assortment of business, lottery, health, scientific and nutrition calculators. Amazing site reflecting a tremendous amount of difficult programming!
Calculator Soup has quite a few useful calculators, including financial, mathematical, gambling and even word problem generators. I found this site trying to calculate the volume of my oil tank. They have a calculator specifically for tank volumes that allows you to select your tank's shape, making the calculator much more accurate!