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 Question Thank you! Oops! Related Contents 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? HSAs: Are they just what the doctor ordered? Are health insurance premiums eating into more of your budget than you’d like?