We don't stop using calculators when we leave school. In fact, as adults we can use special calculators to keep our households on a budget. The following financial calculators help tackle many different tasks, such as reducing debt, saving for college, planning for retirement, and maintaining (or achieving) a good credit score. The web offers financial calculators designed for a variety of situations, from day-to-day problems to once-in-a-lifetime decisions.

About the Author

Adrian Ludwig is a senior account executive at Crest Capital, where he captures incremental online sales typically lost by standard vendor finance programs. Adrian works in nearly every industry vertical, providing leases and loans for equipment, vehicles, and software. Check out his most popular piece: The Difference Between Good Debt and Bad Debt.