Retirement Savings Calculator
Calculate retirement savings growth and required contributions for financial independence planning with compound interest projections. Perfect for long-term financial planning and retirement goal achievement.
Complete Guide: Retirement Savings Calculator
Everything you need to know about using this tool effectively
The Retirement Savings Calculator projects how your retirement savings will grow over time based on your current savings, monthly contributions, expected annual return rate, and years until retirement. It uses compound interest to estimate the future value of your savings and shows how much you need to contribute monthly to reach a target amount. All processing happens in the browser.
This tool applies the future value of annuity formula: FV = PV(1+r)^n + PMT × ((1+r)^n - 1) / r, where PV is current savings, PMT is monthly contribution, r is the monthly interest rate, and n is the total number of months. It also works backward from a retirement goal to calculate the required monthly contribution.
Planning retirement savings
Enter your current savings and monthly contribution to see how much you will have at retirement age.
Setting a retirement goal
Enter a target retirement fund and calculate how much you need to save each month to reach it.
Evaluating investment returns
Compare how different annual return rates (5%, 7%, 10%) affect your retirement savings over 20 or 30 years.
Adjusting savings strategy
See the impact of increasing your monthly contribution by $100 or $500 on your final retirement balance.
Enter current savings
Type your current retirement account balance.
Set monthly contribution
Enter how much you plan to save each month.
Set return rate and years
Enter the expected annual return rate (e.g., 7%) and years until retirement.
View projections
See the projected total savings and year-by-year breakdown.
A 7% annual return is a common long-term stock market average, but your actual returns will vary.
Starting early matters more than the amount. Compound interest rewards time.
Increasing your monthly contribution by even $50 can add tens of thousands over 20 years.
Consider inflation when setting your retirement target. $1 million today will buy less in 30 years.
How is compound interest calculated?
The tool compounds monthly. Each month, the interest earned is added to the balance, and the next month's interest is calculated on the new total. This is the future value of annuity formula.
What annual return rate should I use?
Historical stock market averages are around 7-10% before inflation. A conservative estimate is 6-7%. Use a lower rate if your portfolio is bond-heavy.
Is my financial data sent to a server?
No. All calculation happens in your browser. Your financial information never leaves your device.
Can I calculate the required monthly contribution?
Yes. Enter your target retirement amount and the tool calculates how much you need to save each month to reach it.
Does it account for inflation?
You can enter a real return rate (nominal return minus inflation) to account for inflation. For example, if you expect 7% returns and 2% inflation, use 5% as the return rate.