Lifetime of Earnings Estimate how much you have the potential to earn during your working years. 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 The Rule of 72 Do you know how long it may take for your investments to double in value? The Rule of 72 is a quick way to figure it out. 8 Financial Lessons from the Big (and Little) Screen Financial lessons from movies and TV. Tax Freedom Day Assess how many days you'll work to pay your federal tax liability.