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Retirement Savings

Determine your target retirement nest egg, projected monthly retirement income, and savings timeline.

Reviewed & Maintained by
Aadil Malik — Software Engineer
1 min read  ·  148 words

What is a Retirement Calculator?

A retirement calculator projects your future nest egg balance and annual retirement income based on your current savings, monthly contributions, expected investment returns, and retirement horizon. Proper retirement planning ensures financial independence and peace of mind during your post-career years.

Core Pillars of Retirement Mathematics

  1. Compound Investment Growth:
  1. The 4% Safe Withdrawal Rule:

Worked Example

  • Current Age: 30 | Target Retirement Age: 65 (35-year horizon)
  • Current Savings: $20,000
  • Monthly Contribution: $600
  • Expected Annual Return: 8.0% ($r = 0.08 / 12 = 0.00667$)

At age 65, your retirement portfolio will reach approximately $1,605,000, which safely supports $64,200 / year ($5,350 / month) in inflation-adjusted retirement income.

Frequently Asked Questions

A common rule of thumb is aiming for 25 times your annual desired retirement expenses based on the 4% safe withdrawal rate (e.g., $60,000 annual spending requires a $1.5 million nest egg).
The 4% Rule, established by the Trinity Study, states that withdrawing 4% of your total portfolio in your first year of retirement, adjusted annually for inflation, provides a 95%+ probability that your savings will last at least 30 years.
Traditional accounts provide an upfront tax deduction, with taxes paid upon withdrawal in retirement. Roth accounts are funded with after-tax dollars, allowing 100% tax-free growth and tax-free withdrawals in retirement.
Inflation erodes purchasing power over time. A dollar today will buy significantly less in 30 years. Quality retirement models assume an average 2.5%–3.0% annual inflation rate.
You can claim Social Security as early as age 62 (with a permanent benefit reduction of up to 30%), at Full Retirement Age (66–67 for 100% benefit), or delay until age 70 for an 8% annual boost (124%–132% of full benefit).
An employer match is free money contributed by your employer to your retirement account up to a percentage of your salary (e.g., 50% match up to 6% of salary). Always capture the full match before investing elsewhere.
As you approach retirement, shifting a portion of your portfolio from equities into fixed-income assets (bonds, cash equivalents) reduces sequence of returns risk.
RMDs are mandatory annual withdrawals that US retirees must take from Traditional tax-deferred accounts starting at age 73 (SECURE Act 2.0).