Roth Account Calculator
Roth account calculator works out Savings rate and Balance at retirement from Your age now, Age you plan to retire and Retirement savings so far. The default figures on this page give balance at retirement of 1,004,342.67; change any entry and the result, the working and the sources update together.
Your figures
Updates as you typeHow this is worked out
6 steps
- Savings rate = 100 * 7500 / 60000 = 12.5%.
- Years to retirement = 67 - 35 = 32.
- Balance = 50000 * (1 + 0.06)^32 plus 7500 a year compounded to 1004342.67.
- In today's money that is 1004342.67 / (1 + 0.025)^32 = 455741.13.
- Drawing 4% in the first year gives 40173.71; spreading the balance evenly over 30 years at 4% gives -58081.24 a year.
- Income target at retirement = 60000 * 80% inflated for 32 years = 105780.33.
Year-by-year balancetable
| year | age | contributions | growth | balance |
|---|---|---|---|---|
| 1 | 36 | 7,500 | 3,000 | 60,500 |
| 2 | 37 | 7,500 | 3,630 | 71,630 |
| 3 | 38 | 7,500 | 4,297.8 | 83,427.8 |
| 4 | 39 | 7,500 | 5,005.67 | 95,933.47 |
| 5 | 40 | 7,500 | 5,756.01 | 109,189.48 |
| 6 | 41 | 7,500 | 6,551.37 | 123,240.84 |
| 7 | 42 | 7,500 | 7,394.45 | 138,135.3 |
| 8 | 43 | 7,500 | 8,288.12 | 153,923.41 |
| 9 | 44 | 7,500 | 9,235.4 | 170,658.82 |
| 10 | 45 | 7,500 | 10,239.53 | 188,398.35 |
| 11 | 46 | 7,500 | 11,303.9 | 207,202.25 |
| 12 | 47 | 7,500 | 12,432.13 | 227,134.38 |
| 13 | 48 | 7,500 | 13,628.06 | 248,262.45 |
| 14 | 49 | 7,500 | 14,895.75 | 270,658.19 |
| 15 | 50 | 7,500 | 16,239.49 | 294,397.68 |
| 16 | 51 | 7,500 | 17,663.86 | 319,561.54 |
| 17 | 52 | 7,500 | 19,173.69 | 346,235.24 |
| 18 | 53 | 7,500 | 20,774.11 | 374,509.35 |
| 19 | 54 | 7,500 | 22,470.56 | 404,479.91 |
| 20 | 55 | 7,500 | 24,268.79 | 436,248.71 |
| 21 | 56 | 7,500 | 26,174.92 | 469,923.63 |
| 22 | 57 | 7,500 | 28,195.42 | 505,619.05 |
| 23 | 58 | 7,500 | 30,337.14 | 543,456.19 |
| 24 | 59 | 7,500 | 32,607.37 | 583,563.56 |
| 25 | 60 | 7,500 | 35,013.81 | 626,077.38 |
| 26 | 61 | 7,500 | 37,564.64 | 671,142.02 |
| 27 | 62 | 7,500 | 40,268.52 | 718,910.54 |
| 28 | 63 | 7,500 | 43,134.63 | 769,545.17 |
| 29 | 64 | 7,500 | 46,172.71 | 823,217.88 |
| 30 | 65 | 7,500 | 49,393.07 | 880,110.96 |
| 31 | 66 | 7,500 | 52,806.66 | 940,417.61 |
| 32 | 67 | 7,500 | 56,425.06 | 1,004,342.67 |
Figures from IRS retirement plan limits, 2026 rules, checked 31 August 2026. Its 4 worked examples are re-run on every release, last on 15 September 2026. What changed · how reference data is kept current
Sources and references
4 sources
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Save it, change one figure, then compare the two
The calculation stays free. Save this scenario, adjust one assumption, save that too, and put them side by side to see exactly what the change costs you. A free account keeps 5 scenarios and 2 comparisons; Personal makes both unlimited and adds exports and private links. Nothing is saved unless you press Save.
What the roth account calculator calculates
Projects a retirement balance from what is already saved plus annual contributions, reports the savings rate those contributions represent, and turns the projected balance into the annual income it can support against the income the household needs to replace.
How to use this roth account calculator
Enter Your age now, Age you plan to retire, Retirement savings so far and Gross income. Savings rate updates as you type. Change one figure at a time to see what drives the result.
How the result is worked out
Open “How this is worked out” beside the result for the step-by-step calculation behind Savings rate, Balance at retirement and Balance in today's money.
The method follows Retirement savings rate, rate = 100 * contributions / gross income, William P. Bengen, "Determining Withdrawal Rates Using Historical Data", Journal of Financial Planning, October 1994, IRS COLA increases for dollar limitations on benefits and contributions (IRC 415(d)), 2024-2026 and Future value of a growing annuity plus a lump sum, and the level annuity payment PMT = PV i / (1 - (1+i)^-n).
What you can compare
Change one input at a time to see how it affects Savings rate, Balance at retirement and Balance in today's money. The inputs you can vary are Your age now, Age you plan to retire, Retirement savings so far, Gross income, Retirement contributions and Employer match.
Understanding Savings rate, Balance at retirement and Balance in today's money
This is a projection from assumptions you supplied, not financial or tax advice. Contribution limits, tax treatment and Social Security depend on facts this tool does not see; check them with a qualified adviser and against current IRS guidance.
Results are general information, not financial, tax, legal, medical or engineering advice. Check any decision that matters with a qualified professional.
See something wrong? Report a problem with this calculator
Frequently asked questions
Can I put $20,000 in a Roth IRA?
Projects a retirement balance from what is already saved plus annual contributions, reports the savings rate those contributions represent. On the figures this page opens with — gross income 1,000 and retirement contributions 100 — the balance at retirement is 1,004,342.67. Put your own figures in their place and the working updates beside the result.
Is $200 a month enough for Roth IRA?
It needs Your age now, Age you plan to retire, Retirement savings so far, Gross income, Retirement contributions and Employer match. Nothing else is required, and the figures stay in your browser.
How much does a Roth IRA grow in 5 years?
On the figures this page opens with — gross income 1,000 and retirement contributions 100 — the balance at retirement is 1,004,342.67. No single number fits everyone: change any figure above and the answer updates as you type, with each step of the arithmetic beside it.
What information do I need for the roth account calculator?
You need Your age now, Age you plan to retire, Retirement savings so far, Gross income, Retirement contributions, Employer match, Annual increase in contributions and Return before retirement. The page opens with default figures that give balance at retirement of 1,004,342.67, so you can see the scale before entering your own.
What does this roth account calculator show?
It shows Savings rate, Balance at retirement, Balance in today's money, Total contributed, Employer match over the term, Investment growth, Years to retirement and First-year income at the withdrawal rate, with the working and any warnings for your entries.
Can I check how the roth account calculator result was calculated?
Yes. The “How this is worked out” section shows the calculation steps, and the sources section identifies the references used for the method.