📅 Last reviewed: July 2026 · MySleepTool Editorial Team
Retirement Calculator
Find your retirement savings target, see if you're on track, and calculate exactly how much to save monthly to reach your goal.
Your retirement savings target (4% rule)
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Projected nest egg
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Monthly needed
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Years until retirement
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Retirement Planning — The Core Concepts
Retirement planning is fundamentally a compound interest problem: how much do you need to accumulate, how many years do you have to accumulate it, and what savings rate will get you there? The earlier you engage with these numbers, the more options you have — and the less painful the required savings rate.
The 4% Rule — Your Retirement Target
The 4% rule, derived from the Trinity Study (1998) and subsequent research, provides a practical framework for retirement savings targets. It states that a retiree can withdraw 4% of their starting portfolio value in year one, then increase withdrawals with inflation, with historically low risk of running out of money over a 30-year retirement. The rule implies a savings target of 25× annual retirement spending — your retirement "number."
Some caveats: the 4% rule was derived from US historical returns (which have been higher than many other countries' markets). It assumes a diversified stock/bond portfolio. For early retirees (retiring at 55 vs 65), a more conservative 3–3.5% withdrawal rate (requiring 29–33× annual spending) may be more appropriate given the longer retirement horizon.
The Savings Rate — The Most Controllable Variable
Your savings rate — the percentage of income you save — is the most controllable factor in retirement planning and has a counterintuitive dual effect: saving more both grows the nest egg faster AND reduces the spending you need to sustain in retirement (since you've been living on less). Someone saving 50% of their income is simultaneously building wealth faster AND needs to replace less of their income — explaining why extreme savers can retire in 10–15 years regardless of income level.
Financial Security and Sleep Quality
Financial security — including retirement preparedness — is strongly associated with sleep quality. Research by the American Psychological Association consistently identifies financial concerns as one of the top causes of stress and sleep disruption in adults. People who feel financially on track for retirement report significantly better sleep quality than those who feel behind. Engaging with retirement planning — even when the numbers are uncomfortable — reliably reduces financial anxiety more than avoiding the topic. Knowledge, even of challenging realities, is less stressful than uncertainty.
Retirement — FAQ
How much do I need to retire?
The 4% rule guideline: annual retirement spending × 25 = target nest egg. Spending $50,000/year: need $1.25M. Spending $80,000/year: need $2M. Spending $100,000/year: need $2.5M. Modifiers: retiring before 65 requires a larger multiple (30–33× for early retirement); Social Security income reduces how much your portfolio must provide; high expected healthcare costs warrant a larger buffer. This calculator uses the 4% rule — adjust the retirement spending input to reflect expenses net of Social Security income for a more accurate personal target.
Am I saving enough for retirement?
Common benchmarks: by age 30, have 1× your annual salary saved; by 40, have 3×; by 50, have 6×; by 60, have 8×; by 67, have 10×. These are rough guidelines — this calculator provides a more personalized assessment based on your specific retirement age, spending target, and expected return. The most important factor is your savings rate going forward. If behind, increasing your savings rate by even 2–3% of income can significantly close the gap over 10–20 years of compound growth.
What is the best retirement account?
For US workers: employer 401k with matching — always contribute at least enough to get the full employer match (this is an instant 50–100% return on that money). After that: Roth IRA if you expect to be in a higher tax bracket in retirement; Traditional IRA if you expect lower tax bracket. Max these before taxable accounts. For 2026: 401k limit $23,500 ($31,000 for 50+); IRA limit $7,000 ($8,000 for 50+). Self-employed: SEP-IRA (up to 25% of compensation) or Solo 401k offer high contribution limits.
What is the 4% rule?
The 4% rule was derived from the Trinity Study (Cooley, Hubbard & Walz, 1998), which analyzed historical US stock and bond returns to find sustainable withdrawal rates. It found that withdrawing 4% of starting portfolio value (inflation-adjusted annually) succeeded in 95%+ of historical 30-year retirement scenarios with a 50/50 or 75/25 stock/bond portfolio. It implies a savings target of 25× annual expenses. Some planners now suggest 3.5% (target 28.5× expenses) in lower expected-return environments or for early retirees. The 4% rule is a planning guideline, not a guarantee.
📋 Reviewed by: MySleepTool Editorial Team · Last updated: July 2026 · General informational purposes only. Not financial advice. The 4% rule is a planning guideline, not a guarantee. Consult a qualified financial advisor for personalized retirement planning.