Compound interest
See how savings and monthly contributions could grow.
Project a retirement balance from current savings and regular monthly contributions.
Project a retirement balance from current savings and regular monthly contributions.
Current savings: 25000; Monthly contribution: 500; Annual return (%): 6; Years to invest: 25.
Projected balance: 458,121.23 ; Total contributions: 175,000 .
Assumes monthly compounding and end-of-month contributions at a constant positive rate. It excludes tax, fees and inflation.
Results are rounded for display; calculations use unrounded values. Read our calculation methodology.
Project a retirement balance from current savings and regular monthly contributions. The displayed figures use the inputs and formula shown on this page.
Use the retirement savings to compare a scenario, check an estimate, or verify a manual calculation.
| Input | What to enter |
|---|---|
| Current savings | Enter a number of at least 0 and no more than 1000000000000. |
| Monthly contribution | Enter a number of at least 0 and no more than 1000000000000. |
| Annual return (%) | Enter a number of at least 0.000001 and no more than 100. |
| Years to invest | Enter a number of at least 0.01 and no more than 100. |
Assumes monthly compounding and end-of-month contributions at a constant positive rate. It excludes tax, fees and inflation.
It is exact for the stated mathematical model and entered values. Real-world results can differ when rates, timing, fees, definitions or measurement conditions differ.