CalculateRETIREMENT · UNITED STATES
United States 401(k) & IRA Retirement Planner
Turn today’s contributions into a long-term retirement picture.
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Verified for 2026Methodology 2026.1 · reviewed 2026-08-08 · review by 2026-12-01
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Change current age to see how the result responds.
How to use this calculator
- 1Enter your current current savings, current age, personal monthly contribution, employer match per month, share of personal contribution going to roth, annual contribution increase, expected gross return, annual investment and plan fees, inflation for today’s-money view, years to retirement.
- 2Review the headline projected retirement balance after fees and the supporting figures beside it.
- 3Change one input at a time to compare a cautious and an optimistic scenario.
- 4Use the result for planning, then verify the applicable lender, tax, benefit, school, or medical guidance before acting.
Explore this calculator
What your result means →The headline projected retirement balance after fees is based on the values currently entered above.Key terms explained →Review the assumptions, applicable rules, timing and real-world costs before making a decision.How to use this calculator →Enter your figures, review the live result, compare scenarios, then save or print your estimate.The calculation formula →The calculation follows the standard relationship between the displayed inputs. Results update whenever an input changes.Worked example →Using the current values produces $2,219,405.Assumptions and limitations →Review the assumptions, applicable rules, timing and real-world costs before making a decision.Costs or factors not included →Review the assumptions, applicable rules, timing and real-world costs before making a decision.Frequently asked questions →How accurate is this estimate? What should I check before relying on it? Can I save or share the result?
Compare the numbers that matter
01
Starting balance
$65,000
02 · KEY VIEW
Personal + employer contributions
$656,541
03
Investment growth after fees
$1,497,864
04
Inflation-adjusted
$914,366
Plain-English guidance
Everything needed to review the estimate before making a decision.
Method, assumptions and worked result
This planning experience updates the result from the values above. The current scenario produces $2,219,405. It is designed to make the relationship between inputs visible—not to replace an official quote, benefit statement, tax return, clinical assessment, or lender decision.
What to verify
The Roth percentage tracks contribution mix but does not predict retirement tax rates. 2026 employee deferral limit: $24,500, plus applicable catch-up contributions.
The formula, edge cases, official sources, and review date remain part of the publication checklist for this US-localized calculator.
Frequently asked questions
What does the projected retirement balance after fees show?+
It is a planning estimate based on the values currently entered. Supporting cards help show the components or trade-offs behind it.
Can I change the assumptions?+
Yes. Edit any input, then compare the revised result with the starting scenario.
Is this an official quote or determination?+
No. Confirm current requirements and your individual circumstances with the relevant official source or qualified professional.
Can I save this scenario?+
Yes. Use Save at the top of the page to keep the current inputs in this browser, or share and print the page.
Official references
Rules and thresholds used by this calculator are labelled for 2026 or formula-labelled period. Review the primary guidance before making a filing, borrowing, benefit or investment decision.
Last source review: 3 August 2026. Calculator results are estimates and may exclude circumstances described in the methodology.
Official-source readyDesigned for IRS, SSA, CFPB, CDC and other primary references.
Privacy firstInputs remain on your device unless you choose to share.
Mockup statusVisual and interaction concept—formula validation still required.