Retirement Calculator
Nest egg accumulation & money drawdown longevity.
A retirement calculator combines current savings, ongoing contributions, investment returns, Social Security, and pensions to estimate how long your money will last. Example: $50,000 balance, $500/month contributions, 8% return over 35 years yields roughly $1.98M at retirement.
How retirement expenses are calculated: Annual retirement spending = your current salary × income % needed. Inflation escalates this amount each retirement year. Social Security and pension are entered in today's dollars and grow with the same CPI assumption.
Retirement Growth Timeline
👤 Personal Profile
📈 Savings & Growth
🏖️ Retirement Phase
$1,961,569
At age 65 (35 years of saving)
99+ (Never)
Nest egg lasts beyond life expectancy
✅ On Track
Based on age 85 life expectancy
Retirement Timeline — Portfolio Balance by Age
How Long Will My Money Last in Retirement?
Determining how long will money last during post-working years is the central question of retirement planning. As you transition from accumulating wealth to the drawdown phase, your annual living expenses are funded by withdrawing from your portfolio balance.
This retirement calculator — how long will my money last — models your initial nest egg balance, ongoing monthly savings, employer contributions, expected investment returns, and annual cost-of-living adjustments (inflation). During drawdown, it combines your portfolio withdrawals with Social Security and pension income to project the exact age when your savings might be exhausted.
Mathematical Retirement Accumulation & Drawdown Example
Consider a 35-year-old saver targeting retirement at age 65 with a current salary of $80,000, initial savings of $50,000, monthly personal contributions of $1,000, an employer match of 3% ($200/mo), a 7.0% pre-retirement return, and a 2.5% inflation rate:
| Phase / Milestone | Age Range | Annual Contribution / Income | Assumed Return / CPI | Portfolio Balance |
|---|---|---|---|---|
| Accumulation (Start) | Age 35 | $14,400 / yr ($12,000 + $2,400 match) | 7.0% Return / 2.5% CPI | $50,000.00 |
| Accumulation (Midpoint) | Age 50 | $14,400 / yr + salary raises | 7.0% Return / 2.5% CPI | $512,400.00 |
| Retirement Nest Egg (Peak) | Age 65 | Accumulation Complete | Peak Nest Egg | $1,580,000.00 |
| Drawdown Phase | Age 65 to 90+ | +$30,000/yr (Social Security + Pension) | 5.0% Post-Ret. Growth | On Track Past Age 95 |
Note: Simulation assumes end-of-year portfolio withdrawals where remaining assets continue earning 5.0% annual returns in retirement while expenses escalate with 2.5% annual CPI.
2026 Retirement Savings Milestones by Age
Using a retirement calculator by age allows you to test how your current age, target retirement age, and life expectancy shape your required savings rate:
| Age Milestone | Recommended Nest Egg Target | Example ($80,000 Salary) |
|---|---|---|
| Age 30 | 1× Annual Salary | $80,000 saved |
| Age 40 | 3× Annual Salary | $240,000 saved |
| Age 50 | 6× Annual Salary | $480,000 saved |
| Age 60 | 8× Annual Salary | $640,000 saved |
| Age 67 | 10× Annual Salary | $800,000 saved |
Military, Army & Federal Government Pension Integration
Military service members (US Army, Navy, Air Force, Marines, Coast Guard) and civilian federal employees (FERS) possess unique pension income floors:
- Military Retirement (Legacy High-36 vs. BRS): Service members under the Legacy High-36 system receive 50% of their high-36 month average basic pay after 20 years of active duty. Under the Blended Retirement System (BRS), service members receive 40% of basic pay after 20 years plus up to a 5% matching contribution in their Thrift Savings Plan (TSP).
- FERS Federal Pension: Federal employees receive 1.0% to 1.1% of their high-3 average salary multiplied by total years of creditable service upon reaching minimum retirement age (MRA).
By entering monthly military or government pension benefits in the Monthly Pension field, our calculator automatically offsets annual living expenses, reducing required portfolio drawdown.
Industry Benchmarks: Vanguard 4% Rule, Dave Ramsey & Schwab Frameworks
When planning retirement income, comparing major financial planning frameworks helps validate your drawdown strategy:
- Vanguard & Trinity Study 4% Rule: The 4% rule suggests withdrawing 4% of your total nest egg in year one of retirement and adjusting that fixed dollar amount for inflation each subsequent year, giving a high historical probability of lasting 30 years.
- Dave Ramsey 15% Savings Guideline: Dave Ramsey recommends investing 15% of gross household income into tax-advantaged retirement accounts (401k, Roth IRA) once consumer debt is eliminated.
- Charles Schwab Asset Allocation: Schwab recommends gradually shifting portfolio allocation toward fixed income and cash equivalents as retirement approaches to buffer against sequence-of-returns risk.
ℹ️ Independent Educational Note: PakDigitalz provides an independent mathematical simulation tool. PakDigitalz is not affiliated with, endorsed by, or sponsored by NerdWallet, Dave Ramsey, AARP, Vanguard, SmartAsset, Charles Schwab, or Bankrate. Brand names are referenced strictly for comparative educational context.
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How to Use This Tool
- Enter your age, target retirement age, and projected life expectancy.
- Set savings variables: current nest egg, monthly contributions, and expected investment returns.
- Set employer contribution as a percentage of your salary (e.g., 3% means your employer adds 3% of your salary per year).
- Include estimated Social Security and Pension monthly benefits to see the impact on your savings timeline.
Formula & Specifications
Accumulation: monthly compounding balance += (balance × r/12) + contrib. Drawdown (end-of-year): balance = (prev × (1+retRate)) − netWithdrawal; netWithdrawal = max(0, annualExpenses − SocSec − Pension)
About Retirement Calculator — Estimate Your Savings & Income
Estimate your accumulated retirement savings, model Social Security and pensions, and calculate when your savings will exhaust.
Frequently Asked Questions
How much money do I need to retire comfortably?
A common rule of thumb is the 4% rule, suggesting you need 25 times your annual retirement expenses saved in investments.
How does Social Security affect retirement savings requirements?
Social Security income reduces the amount you need to withdraw from your private savings each year.
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Expert Note
This tool uses the latest international formulas and rates. Results are for estimation purposes. Built and maintained by the PakDigitalz team.
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