Retirement Cost of Living Calculator: $4,543/mo vs $5,050/mo (Index 85)
Use this guide to understand the assumptions, inputs, results, and next steps behind the calculator.
Created by Luis Gonzalez · Last updated July 7, 2026
Retirement cost of living is the amount you expect to spend on housing, food, transportation, healthcare, utilities, taxes, and other expenses after you stop working. This calculator estimates those costs from your current budget, a retirement location cost index, a housing override, property taxes, and inflation. It also compares projected expenses with retirement income.
With the default inputs, current monthly expenses total $5,050. The calculator estimates retirement-location expenses of $4,543 per month before inflation to retirement, a difference of $507 per month. But the retirement income projection grows expenses and income for ten years before age 65. At retirement, modeled annual expenses are $69,785, compared with $69,125 in annual income. A 99% coverage ratio is close to balance, not proof that income will cover every future cost.
Use the estimate to identify budget categories that may change after a move or lifestyle shift. It does not replace a city-specific tax, healthcare, or housing estimate. For a full budget plan, see the Retirement Needs Calculator and how to create a retirement budget step by step.
Build the location estimate from your current spending
Enter monthly spending in each category. The defaults are $2,000 for housing, $600 for food, $500 for transportation, $400 for healthcare, $250 for utilities, $800 for taxes, and $500 for other expenses. Added together, these amounts equal $5,050 per month.
The cost-of-living index scales most categories. At the default index of 85, the calculator multiplies each cost by 0.85. An index below 100 reduces the modeled category costs relative to your current figures; an index above 100 raises them. It is a simplified scaling assumption, not a guarantee that every category in a destination will be cheaper or more expensive by the same percentage.
Retirement housing is a special case. If you enter a retirement housing amount greater than zero, that amount replaces the index-based housing estimate. If you leave it at zero, the calculator estimates housing by applying the index to current housing. The default $250 monthly retirement property tax is added to index-adjusted taxes.
Enter current age, retirement age, years in retirement, monthly retirement income, inflation, and annual return to project income and costs. The default timeline is age 55 to 65, followed by 25 modeled years. The calculator uses a 2.5% inflation rate and a 5% annual return.
For an area-specific healthcare comparison, use the Health Care Cost of Living by City Calculator. If you plan to keep homes in two locations, the Snowbird Cost Calculator can help model dual living costs.
What the default comparison says—and does not say
Under the default cost index, the largest estimated saving is housing: $24,000 per year currently versus $20,400 in retirement, a difference of $3,600. Taxes move the other way: current taxes are $9,600 annually, while indexed taxes plus the added property tax are $11,160, an increase of $1,560 per year.
| Cost index | Retirement monthly estimate before future inflation | Monthly income at age 65 | Approximate coverage at age 65 |
|---|---|---|---|
| 70 | $3,785 | $5,760 | 119% |
| 85 (default) | $4,543 | $5,760 | 99% |
| 110 | $5,805 | $5,760 | 78% |
These comparisons change only the cost index. The retirement monthly estimate uses the category-by-category rounding in the calculator, including the $250 property-tax addition. Monthly income at age 65 is about $5,760 after ten years of 2.5% inflation. Coverage compares that income with the retirement costs after the same inflation adjustment. The displayed 99% result is consistent with the calculator’s more precise coverage ratio of 99.053%.
The index may not reflect your actual rent, mortgage, insurance, healthcare, or tax bill. A destination can have a low overall cost index but high property taxes or healthcare costs. Compare estimates by category instead of choosing a location based on one index number.
Inflation can widen a small gap
The calculator inflates estimated retirement costs and monthly income from age 55 to age 65, then increases both year by year during retirement. With the default assumptions, first-year retirement expenses are $69,785 and income is $69,125. That is a first-year shortfall of $660.
The projected gap continues because expenses and income grow at different rates in the calculation. By age 89, annual expenses reach $126,222 and annual income reaches $125,027. Across the 25 projected years, total retirement expenses are $2,383,704 and total income is $2,361,141. The model’s ending portfolio balance is -$40,488 because it rolls the annual surplus or shortfall forward and applies a return; this is a mathematical gap, not an account balance you can actually withdraw.
This projection assumes the income entered grows with general inflation. It does not assess whether Social Security benefits, pension payments, or investment withdrawals will actually rise at that rate. It also does not separately model long-term care or a major healthcare event. Learn more about how much healthcare can cost in retirement and use the Assisted Living Cost Calculator if that care is part of your planning.
Formula: from monthly costs to retirement coverage
The calculator first sums the current monthly categories, then applies the location index to most costs. Retirement property tax is added to the tax category.
Current monthly cost = housing + food + transportation + healthcare
+ utilities + taxes + other
= $2,000 + $600 + $500 + $400 + $250 + $800 + $500
= $5,050
At the default cost index, 85 becomes a multiplier of 0.85. Each category is rounded to a whole dollar before the total is calculated. The tax estimate also adds $250 for retirement property tax:
Retirement monthly cost = indexed categories + retirement property tax
= $4,293 + $250
= $4,543
The ten-year inflation multiplier is 1.025¹⁰, or about 1.2801. The calculator applies this multiplier to retirement costs and income at the start of retirement:
Annual expenses at retirement = $4,543 × 12 × 1.025^10
= about $69,785
Annual income at retirement = $4,500 × 12 × 1.025^10
= about $69,125
The income adequacy ratio compares these two annual amounts. The score is capped at 100 and is based on that ratio; it does not measure investment risk, tax effects, or confidence in the input estimates.
Compare the right housing and healthcare choices
If you enter a retirement housing amount, use a realistic monthly cost for the new home rather than a home-purchase price. Include rent or mortgage payments, insurance, maintenance, and any expected homeowner association fees in the amount or in the appropriate budget categories. The calculator does not automatically know whether you will own a home outright or move to a smaller property.
Property taxes are entered separately because they can differ substantially by location and may rise after a move. The default amount is $250 per month, added to the indexed taxes estimate. If your current tax entry already includes a property-tax amount that you will continue paying, avoid counting the same cost twice.
Healthcare deserves its own estimate. Medicare eligibility generally begins at age 65, but healthcare spending does not disappear at that age. Medicare coverage has premiums and cost-sharing, and some services are not covered. Medicare describes its covered dental services and limitations at Medicare.gov. For Medicare drug costs, compare plans with the Medicare Part D Plan Comparison Calculator.
Retirement income also needs scrutiny. If the monthly income figure combines Social Security, pension income, and withdrawals, check whether it is before or after tax. Taxable withdrawals may not provide the same spendable amount as the gross figure. See how retirement-account withdrawals are taxed and test withdrawal amounts with the Retirement Withdrawal Calculator.
Frequently asked questions
Does a 99% coverage ratio mean my budget is safe?
No. It means modeled first-year income is about 99% of modeled first-year expenses under the inputs provided. It does not include every potential expense or predict market returns, taxes, or unexpected changes.
Why does the retirement estimate use a cost-of-living index?
The index provides a simple way to scale most spending categories for a different location. It cannot represent local differences in every individual bill, so replace the estimate with actual quotes wherever possible.
Should I use the index or enter a specific housing cost?
Use a specific housing amount when you have a credible estimate for the home you expect to occupy. Leave it at zero only when you want the calculator to scale current housing by the cost index. The tradeoff is a more tailored housing figure versus a quicker, less precise comparison.
Does the 5% return mean I will earn 5% each year?
No. It is a fixed assumption used in a simplified projection. Actual returns vary, and the result does not model a sequence of gains and losses.
Why can the ending portfolio balance be negative?
The model carries annual shortfalls forward and applies the return assumption. A negative result represents projected expenses exceeding modeled income and the accumulated projection balance; it is not a recommendation or a real account balance.
Next steps
Replace broad assumptions with local housing, tax, and healthcare estimates, then rerun the projection at several inflation and return rates. Compare the location budget with your retirement income plan before treating the difference as spendable savings.