Compound interest is what separates wealth-builders from savers. When your interest earns interest, growth becomes exponential rather than linear. The compound interest calculator visualizes this with year-by-year projections.
The Rule of 72 provides a quick estimate: divide 72 by your annual return to find how many years until your money doubles. At 7% average stock market returns, your money doubles roughly every 10.3 years. At 10%, every 7.2 years.
The retirement calculator answers the most critical financial question: will your money last? Enter your current savings, monthly contributions, expected return, and target retirement age.
The 4% safe withdrawal rule states that you can withdraw 4% of your portfolio each year with very low risk of running out over a 30-year retirement. A $1 million portfolio supports roughly $40,000 per year. Working backwards: if you need $60,000/year, you need $1.5 million saved.
Use the DCA calculator to model the effect of investing a fixed amount monthly rather than trying to time the market.
The debt payoff calculator compares two proven strategies side by side:
The calculator shows you exactly how much interest each method saves and when you will be debt-free under each scenario.
The savings goal calculator works backwards: enter your target amount and deadline, and it tells you exactly how much to save monthly. The paycheck calculator helps you understand your actual take-home pay, so you can budget realistically.