Retirement Calculator
Estimate retirement savings needs and project growth from current savings and monthly contributions. Tune expected return, inflation, and income replacement to explore scenarios.
This retirement calculator is built for quick planning. Start with your current age and your target retirement age, then add income, current savings, and a monthly contribution. The tool projects a retirement target and a portfolio value at retirement.
It’s not financial advice. Real outcomes depend on taxes, fees, market volatility, and real-life changes to income and savings.
How to use the retirement calculator
Add your numbers, then test conservative vs optimistic assumptions.
1. Enter ages & income
Current age, target retirement age, and current annual income.
2. Add savings & contribution
Current savings plus a monthly contribution you can maintain.
3. Adjust return & inflation
See how projections shift when assumptions change.
Key inputs that drive the projection
Expected return
Used to project how savings might grow. Over long horizons, changing this assumption even slightly can change outcomes a lot.
Inflation rate
Used to estimate how much income you may need in the future to maintain today’s purchasing power.
Income replacement ratio
A target percent of income you want to replace in retirement (commonly 70–80%). It’s a planning heuristic, not a rule.
Retirement duration
The calculator uses a simple lifespan assumption to estimate how long savings may need to support withdrawals.
Common pitfalls
Over-optimistic returns
Try a conservative return too. High assumed returns can hide a shortfall until late in the plan.
Ignoring inflation
Skipping inflation makes future income needs look smaller than they’ll likely be.
Unrealistic contributions
Plan with a monthly contribution you can sustain across different life stages and market conditions.
Missing other income sources
Pensions, social security, rental income, and part-time work can reduce portfolio needs (not modeled here).
What this tool supports
| Feature | Supported | Notes |
|---|---|---|
| Inflation-adjusted income target | Yes | Projects income needs using your inflation input. |
| Monthly contributions + growth | Yes | Models a monthly contribution compounded over time. |
| Year-by-year breakdown | Yes | Shows a simple yearly balance progression to retirement. |
| Signup required | No | No account needed. |
Frequently Asked Questions
User reviews
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Ready to run a scenario?
Start with your current numbers, then try conservative vs optimistic assumptions.