Finance Tools
What It Does
Estimates whether your current savings and contribution plan are on track for retirement. The calculator models two phases: an accumulation phase (working years) where contributions and investment returns grow your savings, and a drawdown phase (retirement years) where you withdraw an inflation-adjusted income. It shows whether you’ll have a surplus or shortfall and tells you exactly how much to save monthly to close any gap. Includes a year-by-year projection for both phases, a sensitivity table comparing eight different return rates, and supports 46 currencies for formatted monetary displays.
How to Use It
- Enter your current age and target retirement age.
- Set your life expectancy (this determines how long savings must last).
- Enter your current retirement savings and monthly contribution. Optionally set an annual contribution change to model salary growth or declining savings rates.
- Set the expected annual returns — one for your working years (typically higher, e.g. 7%) and one for retirement (typically lower/more conservative, e.g. 4%).
- Enter the annual income you want in retirement (in today’s dollars — the calculator adjusts for inflation).
- Set the expected annual inflation rate (default 2.5%).
- Select your currency from the dropdown (defaults to USD).
- Click “Calculate” to see the projection, or “Clear” to reset all fields.
- Use “Copy Results” to copy the summary to your clipboard, or “Export CSV” / “Export Excel” to download the full analysis.
Options Explained
| Option | Description |
|---|---|
| Current age | Your age today — this determines how many working years remain before retirement |
| Retirement age | The age you plan to stop working and begin withdrawing from savings |
| Life expectancy | How long you expect to live — this sets the number of years your savings must support (use a conservative/higher estimate to avoid outliving savings) |
| Current retirement savings | The balance you have already saved for retirement — this is your starting point |
| Monthly contribution | How much you save toward retirement each month during your working years |
| Annual contribution change (%) | How much your monthly contribution changes each year. A positive value models salary growth (e.g. 3% annual raise), a negative value models declining contributions. Only shown when the monthly contribution is greater than zero |
| Pre-retirement return (%) | The average annual investment return you expect during your working years. Historically, a diversified stock portfolio has returned ~7% (real terms) |
| Post-retirement return (%) | The average annual return during retirement — typically lower because retirees shift to more conservative investments (bonds, etc.) |
| Desired annual income | The yearly income you want to live on during retirement, expressed in today’s dollars — the calculator will inflate this to future dollars |
| Annual inflation rate (%) | The expected average rate of price increases per year. Historically ~2–3% in developed economies |
| Currency | The currency for all monetary values — affects the symbol shown on amounts. Does not perform any conversion |
| Export CSV | Downloads a .csv file with the summary, year-by-year projection, and sensitivity table — ideal for spreadsheets or data analysis |
| Export Excel | Downloads an .xlsx file with the same data formatted for Microsoft Excel or compatible applications |
About Retirement Planning
Retirement planning involves balancing two key phases: the accumulation phase during your working years, where regular contributions and investment returns grow your savings, and the drawdown phase during retirement, where you withdraw an income that increases with inflation.
The relationship between your investment return rate and inflation is critical. A higher real return (return minus inflation) means your savings last longer in retirement. Even a 1% difference in annual returns can change your outcome by hundreds of thousands of dollars over decades. Use the sensitivity table to see how different return assumptions affect your plan.
Start early — compound growth accelerates over time. A dollar saved at 30 is worth far more at retirement than a dollar saved at 50. Export the year-by-year projection to a spreadsheet for deeper analysis and to model different scenarios.
Common Use Cases
- Estimating total savings needed for a comfortable retirement
- Determining required monthly contributions to reach a target portfolio
- Projecting how long savings will last during the drawdown phase
- Comparing different retirement ages and their impact on required savings
- Modeling the effect of Social Security or pension income on withdrawal needs
- Stress-testing a retirement plan against different inflation and return assumptions
What Is Retirement Planning?
Retirement planning is the process of determining how much money you need to accumulate during your working years so that withdrawals can sustain your desired lifestyle throughout retirement. It balances two phases: the accumulation phase, where contributions and investment returns grow your portfolio, and the drawdown phase, where you withdraw an inflation-adjusted income. The key variables are contribution rate, investment return, inflation, retirement age, and expected lifespan. Even small changes in these assumptions compound dramatically over decades — starting contributions 5 years earlier or earning 1% more annually can add hundreds of thousands to a final portfolio. The 4% rule provides a rough withdrawal guideline, but personal circumstances, healthcare costs, and market conditions require individualized planning.
Frequently Asked Questions
How much do I need to retire?
A common guideline is 25 times your expected annual expenses in retirement (based on the 4% withdrawal rate). However, the exact amount depends on your lifestyle, healthcare needs, other income sources, and how long you expect retirement to last.
When should I start saving for retirement?
As early as possible. Due to compound growth, money invested in your 20s has decades more time to grow than money invested in your 40s. Starting 10 years earlier can mean needing to save significantly less each month to reach the same goal.
What is a safe withdrawal rate?
The safe withdrawal rate is the percentage of your portfolio you can withdraw annually without running out of money. The commonly cited 4% rate is designed to last at least 30 years. More conservative planners use 3–3.5% for longer retirements.