Doubling Your Money This calculator demonstrates the power of compound interest. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Share | Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content College Saving Contact me to develop an education investment strategy that can put your children on the path to success. How credit can determine your financial health These days we’re quick to make all our purchases with credit cards – even the small ones. But is that wise? Data Thieves from Outer Space Learn about the dangers of internet fraud with this highly educational and fun “pulp” comic.