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Retirement Savings Calculator

See how much your monthly retirement contributions could grow to.

Inputs

%
%

Saved Scenarios

— select 2+ to compare

Projected Balance

$405,036

Total Contributed

$150,000

Spark says

How it's calculated

Formula

FV=PMT×(1+r)n−1rFV = PMT \times \dfrac{(1+r)^n - 1}{r}
PMT
— Monthly contribution
r
— Monthly rate of return
n
— Number of months

What is the Retirement Savings Calculator?

This calculator projects the future value of regular monthly retirement contributions, assuming a constant annual rate of return, compounded monthly.

How to use it

  1. 1 Enter your planned monthly contribution.
  2. 2 Enter the expected annual return.
  3. 3 Enter years remaining until retirement.

Worked examples

$500/month at 7% for 25 years

Projects to roughly $406,000.

Try it

Limitations

  • •Real returns vary year to year — this assumes a smooth, constant rate.
  • •Doesn't account for employer matching, fees or taxes.

Frequently asked questions

What return rate should I assume?

Many long-term retirement projections use 6-8% for a diversified stock-heavy portfolio, though actual returns vary significantly year to year.