Retirement Calculator
Project your retirement savings from now to your retirement age.
Quick answer
- Formula: Balance = S(1+r)^n + C · ((1+r)^n − 1)/r, over n = months until retirement
- Worked example — Years to retirement: 10 (full example below).
Retirement Calculator
| Years to retirement | 10 |
| Projected savings at retirement | $27,070 |
| Total you contribute | $10,000 |
| Growth from investments | $17,070 |
$10,000 growing at 10% for 10 years becomes about $27,070 with no further contributions — growth of $17,070.
Estimate how much you could have at retirement: your current savings plus monthly contributions, grown at an assumed annual return, compounded monthly.
The projection is an estimate, not a guarantee — real returns vary year to year. Use it to test how changing your monthly contribution or retirement age changes the outcome.
The formula
Worked example
$10,000 growing at 10% for 10 years becomes about $27,070 with no further contributions — growth of $17,070.
The example is pre-loaded in the result panel — press Calculate with your own numbers to replace it.
Frequently asked questions
What return should I assume?
Long-run US stock market returns have averaged around 7–10% per year before inflation, but past performance does not guarantee future results. Many planners use 6–7% for a mixed portfolio.
Does this account for inflation?
No — results are in nominal dollars. To think in today's purchasing power, subtract roughly 2–3% inflation from the return you enter.
Category: Finance calculators
Sources & methodology
This calculator applies the formula shown on this page exactly as written, using the standard definitions for its inputs. Results are computed from the values you enter — no data is stored — and are rounded only for display.
Content last reviewed by CalcHub Editorial.
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