Retirement Calculator
A data-driven vision for your financial independence.
Retirement Calculator
Are you saving enough to retire comfortably? This calculator shows whether your current savings rate will get you there — and what adjustments you need to make if you're falling short.
How to Use This Calculator
- Enter your current age and target retirement age.
- Enter your current retirement savings.
- Enter your monthly contributions (401k, IRA, etc.).
- Enter expected annual return rate during accumulation and withdrawal phases.
- Enter your desired annual retirement income.
- Enter expected Social Security benefit (find yours at ssa.gov).
- Click Calculate to see projected balance and whether it covers your needs.
The 4% Withdrawal Rule
A common retirement guideline: withdraw 4% of your portfolio in year one, then adjust for inflation annually. To generate $60,000/year, you need $60,000 ÷ 0.04 = $1,500,000 saved. This rule has a historically high success rate for 30-year retirements.
Example Calculation
Age 35, retire at 65 | Current savings: $85,000 | Monthly contribution: $1,200 | 7% return | Desired income: $70,000/year
- Projected balance at 65: ≈ $1,780,000
- 4% withdrawal: $71,200/year ✓
- With $20,000 Social Security: need $50,000 from savings → 2.8% withdrawal → Very safe
Common Mistakes to Avoid
- Not accounting for inflation — $70,000 today needs ~$113,000 in 20 years at 3% inflation.
- Ignoring healthcare costs — Pre-Medicare healthcare can cost $800–$1,500/month per person.
- Underestimating retirement length — Plan for 25–30 years of retirement, not 15–20.
- Forgetting required minimum distributions — RMDs from traditional IRAs/401ks start at age 73. See our RMD Calculator.
Frequently Asked Questions
How much do I need to retire?
Multiply your desired annual income by 25 (the 4% rule inverse). $60,000/year → $1.5M. $80,000/year → $2M. Adjust downward based on expected Social Security income.
When can I retire?
When your projected portfolio can sustain your desired withdrawal rate for your expected retirement length. Most financial planners use a 90–95% probability of success over 30 years as a target.
Should I use a Roth or traditional 401k?
Traditional: tax deduction now, taxed on withdrawal. Roth: no deduction now, tax-free in retirement. If you expect higher taxes in retirement, Roth wins. See our Roth IRA Calculator.
What is the ideal retirement savings rate?
Most experts recommend saving 15% of gross income for retirement (including employer match). If starting late, 20%–25% may be needed to catch up.
How does Social Security affect my retirement math?
Every $1 of guaranteed Social Security income reduces the portfolio balance you need by $25 (at 4% withdrawal). $20,000/year in Social Security = $500,000 less needed in savings.
Conclusion
Retirement planning is the most important long-term financial exercise you can do. Run this calculator every year to see if you're on track, and adjust contributions when you're not. Small adjustments made early save massive catch-up contributions later.
Related: 401K Calculator | Roth IRA Calculator | Social Security Calculator | Investment Calculator
Expert Advice
The single biggest contributor to retirement success is your savings rate. If the numbers look tight, try increasing your contribution by just 1-2%—the compounding effect over 30 years is massive.
