The formula
FV = P(1 + r)ⁿ + PMT × {[(1 + r)ⁿ − 1] ÷ r}
Calculations run in your browser. Displayed values are rounded, while intermediate calculations keep their full precision.
What this estimate assumes
- The monthly rate is converted so compounding it 12 times reproduces the entered annual return exactly: monthly rate = (1 + annual rate)^(1/12) − 1.
- Contributions are made at the end of each month.
- Taxes, fees, inflation and market volatility are excluded.
A quick reality check
US$500 a month for 20 years
At 6% a year, the projected balance is about US$226,719.
Common questions
Is the return guaranteed?
No. The rate is a planning assumption, not a forecast or guarantee.