Using the Future Value Calculator
Start with a zero contribution to isolate growth on a lump sum. Then add a monthly amount to see the effect of regular saving. Keep the return assumption unchanged between runs so that the comparison remains meaningful.
Worked example
Use the example inputs below to reproduce this result. These are the form's starting values, not recommended targets. Changing your inputs updates your result above; this worked example stays fixed for comparison. Results are rounded for display.
Example inputs
- Starting balance
- 10000
- Monthly contribution
- 200
- Annual nominal return (%)
- 5
- Years
- 10
Example result
- Future balance
- 47,526.55
- Total contributions
- 34,000
- Growth
- 13,526.55
Method and assumptions
Monthly compounding with end-of-month contributions and a constant nominal annual rate. Taxes, fees and market fluctuations are excluded.
Separate contributions from growth
An ending balance can grow because you put more money in, because the assumed return is higher, or because the money has more time to compound. Those are different effects. Keep the contribution schedule consistent when comparing rates, and distinguish a mathematical projection from a return that is contractually guaranteed. Fees and taxes need their own assumptions.
Common question
How can I estimate future value without regular deposits?
Set the monthly contribution to zero. The result then reflects only the starting balance and its assumed compound growth.
Guide updated .