Estimate how much your retirement savings could grow to by your target retirement age, based on your current savings, monthly contributions and expected annual return.
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This calculator compounds your current savings forward to your retirement age, and separately calculates the future value of your ongoing monthly contributions using the future value of an annuity formula, then adds the two together to get your projected total retirement corpus.
For example, starting at age 30 with 500,000 already saved, contributing 15,000 every month until retiring at 60 (30 years, or 360 months), at an expected 10% annual return, projects to a retirement corpus of roughly 44,108,579.55. Of that, only 5,900,000 came from actual contributions, meaning about 38,208,579.55 is investment growth, illustrating how much compounding does over a multi-decade horizon.
The estimated monthly income uses the widely referenced 4% rule, which suggests withdrawing about 4% of your retirement savings per year can be sustained over a long retirement without depleting the principal too quickly, though this is a general guideline, not a guarantee, and doesn't account for inflation, sequence-of-returns risk, or your specific spending needs.
Treating the projected corpus as spendable today's-dollars value, since this calculator projects nominal growth, actual purchasing power at retirement will be lower once inflation is factored in.
Using an overly optimistic expected annual return for the entire multi-decade period, historical long-term equity returns vary widely and rarely sit at one constant rate every single year.
Relying solely on the 4% withdrawal rule without adjusting for a longer-than-average retirement, healthcare costs, or a more conservative investment mix after retiring.
No, this calculator projects nominal (non-inflation-adjusted) future values. Your actual purchasing power at retirement will be lower than the projected corpus suggests, since prices generally rise over time.
No, the 4% rule is a commonly cited planning guideline based on historical market data, not a guarantee. Actual sustainable withdrawal rates depend on market performance, your investment mix, and how long your retirement lasts.
This calculator assumes a constant, uninterrupted monthly contribution. Pauses or changes in your contribution amount will affect your actual results compared to this projection.
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