Retirement Savings Calculator
Project your nest egg across 1,000 Monte Carlo scenarios with Social Security offset and success rate.
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Retirement & Life Planning Calculators
Savings projection, budget planning, and legacy tools
Planning for retirement requires tools that go beyond simple projections. These calculators model savings growth under uncertainty using Monte Carlo simulation, estimate monthly spending in retirement across detailed categories, and project long-term investment growth accounting for inflation, fees, and taxes. Each tool documents its methodology and assumptions so you understand what the numbers actually mean.
Retirement planning
Retirement Savings Projection
Model your nest egg across scenarios, project portfolio growth over decades, and estimate the monthly savings rate needed to hit your number.
Investment Calculator
Project portfolio growth from starting balance, contributions, return rate, time, inflation, and fees — with goal planning and year-by-year breakdown.
Compound Interest Calculator
Calculate compound growth with year-by-year table, real value, and monthly goal calculator.
Retirement planning
Income, Budget & Spending
Estimate monthly retirement expenses, understand your current take-home pay, and convert salary to true hourly rate to plan contributions.
Retirement Budget Calculator
Estimate monthly retirement income needs and spending categories.
Paycheck Calculator
Estimate take-home pay after federal and state taxes, FICA, retirement contributions, and other deductions.
Salary to Hourly Calculator
Convert annual salary to true hourly rate with overtime, benefits, and taxes.
Retirement planning
Legacy Planning
Document values, memories, and messages for the people who matter — practical legacy tools for those thinking beyond their own retirement.
Legacy Letter Generator
Create prompts for memories, values, wishes, and family messages.
Monte Carlo vs. Linear Retirement Projection
Most online retirement calculators assume a fixed annual return — say, 7% — and project a single straight-line outcome. The problem is that real markets do not return 7% every year. Sequence of returns risk means that two portfolios with identical average returns can have vastly different outcomes depending on whether poor years happen early or late in retirement. The Retirement Savings Calculator runs 1,000 Monte Carlo scenarios using historical return distributions to model this uncertainty, returning a success rate and the 10th, 50th, and 90th percentile outcomes rather than a single misleading number.
How Much Do You Need to Retire?
The 4% rule — spending 4% of your portfolio in year one and adjusting for inflation thereafter — suggests a target of 25× your annual expenses. But this rule was derived from 30-year retirement periods and US market history. For longer retirements, international portfolios, or higher spending rates, the success rate drops. Use the Retirement Savings Calculator to model your specific parameters rather than assuming a generic target applies to your situation.
Planning Your Retirement Budget
Most people underestimate retirement spending. Healthcare costs rise in later years, and while some expenses (commuting, work clothing) disappear, others (leisure, travel, medical) increase. The Retirement Budget Calculator breaks spending into categories to force a concrete estimate. Combine it with the savings projection tools to see whether your projected portfolio actually covers your modelled spending.
The Role of Pre-Tax Contributions
Contributing to a traditional 401(k) reduces your taxable income now. A $10,000 annual contribution from a 25% marginal bracket saves $2,500 in current taxes. The Paycheck Calculator shows this effect directly — enter your 401(k) contribution per period and see the after-tax impact on your net pay. The actual cost of the contribution to your take-home is meaningfully less than the gross amount because of the tax reduction.
FAQ
Retirement Planning Calculator Questions
Short answers for readers and answer engines.
What is the best free retirement calculator?
The Retirement Savings Calculator on this site uses Monte Carlo simulation across 1,000 scenarios to account for market variability. It accepts current savings, monthly contributions, Social Security estimates, planned retirement age, and asset allocation, then returns a success rate and percentile outcomes — more useful than a single projection.
How do I know if I am saving enough for retirement?
Enter your current savings, monthly contribution, expected return, and target retirement age into the Retirement Savings Calculator. The tool shows your projected balance at retirement across 1,000 scenarios and tells you what percentage of those scenarios result in your money lasting through your target end age. A success rate below 80% usually warrants increasing contributions or adjusting expectations.
What is sequence of returns risk?
Sequence risk is the danger that poor investment returns early in your retirement — when withdrawals begin — can deplete your portfolio faster than the long-term average return would suggest. A portfolio that averages 7% but loses 30% in year one of retirement is in a much worse position than one that gains 30% in year one and then averages 7%. Monte Carlo simulation models this risk by running thousands of possible return sequences.
How much of my salary should I save for retirement?
A commonly cited guideline is 15% of gross income, including any employer match. Starting earlier dramatically reduces the required savings rate due to compound growth. The Retirement Savings Calculator solves for the required monthly contribution given your current savings, target balance, and time horizon, so you can find the specific rate that applies to your situation.
What expenses change in retirement?
Commuting, work clothing, and payroll taxes typically decrease. Healthcare, leisure, and potential long-term care costs typically increase. Housing costs depend on whether you carry a mortgage into retirement. The Retirement Budget Calculator provides a structured breakdown of typical retirement spending categories to help you estimate a realistic number.