Why Use This Retirement Savings Calculator
A successful retirement plan is built on realistic projections. This retirement planning calculator helps you:
- 📈 Project Your Savings — see how your nest egg grows until retirement.
- 💰 Estimate Your Income — see how much annual income your savings can provide.
- 📊 Identify Income Gaps — know if you’re saving enough to meet your goals.
- 📉 Model Inflation — see your purchasing power in today’s dollars.
- 📜 Track Your History — save, review, and export past calculations to CSV or Excel.
- 🔒 100% Private — all calculations run locally; your data never leaves your browser.
Retirement Formula Used by This Tool
We use the standard compound interest formula with periodic contributions to project your savings until retirement:
Savings at Retirement = Current Savings × (1 + r/n)^(nt) + PMT × [((1 + r/n)^(nt) - 1) / (r/n)]
Where:
- Current Savings = Your existing retirement balance
- PMT = Monthly contribution
- r = Annual return rate (as a decimal)
- n = Compounding frequency per year
- t = Years until retirement
Retirement Duration is calculated using the sustainable withdrawal model (4% rule):
Sustainable Annual Income = Savings at Retirement × 0.04
If you set a target annual income, the calculator shows the shortfall or surplus.
How to Use This Retirement Planner
- Select your account currency from the picker in the site header.
- Enter your current age and expected retirement age.
- Enter your current retirement savings.
- Set your monthly contribution.
- Enter your expected annual return rate.
- Enter the inflation rate (for inflation-adjusted projections).
- Enter your desired annual income in retirement.
- The tool updates instantly — see your savings at retirement, annual income, income gap, and how long your retirement savings will last.
Frequently Asked Questions
How does the retirement calculator work?
Our retirement calculator uses your current savings, monthly contributions, expected return rate, and inflation to project your savings at retirement. It then compares your projected savings to your desired annual income to show whether you’re on track.
How much do I need to retire?
A common rule of thumb is to have 10-12 times your annual income saved by retirement. However, the exact amount depends on your desired lifestyle, retirement age, and expected returns. Use this retirement savings calculator to get a personalized estimate.
What is a safe withdrawal rate in retirement?
The 4% rule is a common guideline — withdraw 4% of your portfolio in the first year of retirement and adjust for inflation thereafter. This is designed to make your savings last 30 years.
Does this retirement planner account for inflation?
Yes. Enter your expected inflation rate, and the tool will show your retirement income and savings in both nominal and inflation-adjusted terms.
What is the difference between this and a retirement income calculator?
This retirement planning calculator projects your total savings and then estimates your sustainable annual income. A retirement income calculator focuses specifically on how much you can withdraw each year without running out of money.
Is my data stored anywhere?
No. All calculations run locally in your browser. History and presets are saved in your browser’s localStorage — nothing is sent to a server.