Retirement Calculator
Project your retirement savings over time based on contributions, returns, and retirement age.
Your Results
Enter your details and click calculate.
What This Calculator Does
This retirement savings calculator projects the growth of your retirement fund over time based on current savings, monthly contributions, expected investment return, and years until retirement. It shows projected final balance and total contributions vs. investment growth.
The Formula
FV is the future value, PV is the present value (current savings), r is the monthly return rate, n is total months, and PMT is the monthly contribution. The first term grows existing savings; the second grows future contributions.
Step-by-Step Example
Enter current savings
How much you have saved for retirement today. Example: $50,000 in a 401(k).
Enter monthly contribution
How much you contribute per month. Example: $500/month.
Set expected return
Historical average for a diversified stock portfolio is approximately 7-10% annually. Use 7% for a conservative estimate.
Set retirement timeline
Enter your current age and target retirement age. Example: age 30 to 65 = 35 years.
Real-World Use Cases
Early Career Planning
See the dramatic impact of starting to invest early thanks to compound growth over decades.
Catch-Up Assessment
If you started saving late, model how increasing contributions can help close the gap.
Employer Match Optimization
Factor in employer matching contributions to see the full benefit of maximizing your 401(k).
Common Mistakes to Avoid
Using nominal returns without adjusting for inflation. A 7% return with 3% inflation yields roughly 4% real growth.
Assuming consistent returns - actual markets are volatile. This is a projection, not a guarantee.
Forgetting that retirement withdrawals will be taxed (for traditional 401k/IRA), reducing effective spending power.
Frequently Asked Questions
Accuracy and Disclaimer
Retirement projections are hypothetical and do not guarantee future results. Actual investment returns fluctuate and past performance is not indicative of future results. Consult a certified financial planner for personalized retirement advice.
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