http://www.onlineconversion.com/ This site has conversion equations for just about anything you can dream up/calculate. Most of it is useful, except for the Roman Numeral conversion thingy and a few others.
Thanks for sharing Clyde! : ) Thanks for sharing Clyde, I shall post this on my "On-line Homeschool Group Site" to share with other fellow homeschoolers! ~Wildernessgal~