Compound interest calculator
Project how your savings could grow with monthly contributions. Compound growth means earning returns on earlier growth as well as the money you put in.
After 30 years at 7% a year, compounded monthly.
Your starting balance plus every contribution
Growth on top of what you contributed
Estimates only, not financial advice. Assumes a constant annual return compounded monthly with level monthly contributions. Real returns vary and are not guaranteed.
A worked example
Start with $10,000 and add $500 at the end of each month for 10 years. At a constant 6% nominal annual return compounded monthly, the model ends at $100,134. You contributed $70,000 in total; the rest is modeled growth before fees and taxes.
Try changing one input at a time. A larger contribution is under your control; a higher return is not. For a spending goal, compare the future balance with costs after inflation.