Calculate how much your 403(b) retirement plan will grow over time. Enter your salary, contribution rate, employer match, and expected return to project your retirement balance. Popular with teachers, nurses, and nonprofit workers.
A 403(b) is the nonprofit and public-education sibling of the more familiar 401(k). Originally created for public school teachers and ministers, it now covers employees of public schools, colleges, hospitals, charitable organizations, and certain other 501(c)(3) entities. The two plan types share most features — same employee contribution limits, similar tax treatment, similar investment lineup — but differ in some details that matter for planning.
The 2025 employee contribution limit is $23,500 (matching the 401(k) limit), with a $7,500 catch-up for workers age 50+ and an additional super-catch-up for ages 60–63 under SECURE 2.0. 403(b) plans uniquely also allow a special "15-year catch-up" provision: employees with 15+ years of service at the same eligible employer can contribute an extra $3,000/year for up to 5 years ($15,000 lifetime). Combined limits can be substantial for long-tenured workers nearing retirement.
This calculator projects your 403(b) balance at retirement using your current balance, contribution rate, employer match (if any), expected return, and time horizon. Use it to evaluate whether your current contribution rate is on track for a comfortable retirement, to test the impact of bumping contributions up, or to estimate the future value of a long career's worth of consistent saving in a tax-advantaged plan.
Age 25, $48,000 starting salary, 8% contribution + 2% employer match (small district), $0 balance, 35-year horizon. Salary growth: 2.5% (step increases). Year 1 contribution: $48,000 × 10% = $4,800 (employee + match) After 35 years at 7% with salary growing 2.5%: Total contributions: ~$280,000 (across all years) Final balance: ~$870,000 The compound growth dominates contribution amount over a 35-year horizon. The same person saving 15% instead of 8% reaches ~$1.3M.
Age 55, $90,000 salary, 18 years of service at the same employer. Currently contributing $23,500/year (limit), already 50+ so can add $7,500 catch-up = $31,000. Plus 15-year catch-up: $3,000/year additional ($15,000 lifetime). Total possible annual contribution: $34,000/year (extraordinary). Plus employer match if available. The 15-year catch-up is unique to 403(b) plans and uncommon in other workplace plans. Long-tenured educators and nonprofit workers approaching retirement can use it to dramatically accelerate final savings.
Age 40, $70,000 salary, $50,000 current balance, 25 years to retirement, 7% return, 2.5% salary growth. Scenario A — 6% contribution: ~$610,000 projected at retirement. Scenario B — 10% contribution: ~$830,000 projected. Scenario C — Maximum ($23,500/yr = 33.6% of $70K, growing with salary): ~$1,650,000 projected. The difference between minimum-match-capturing and maximum-contributing is over $1 million in this scenario. Contribution rate matters enormously, especially with 20+ year horizons.
Use this calculator at the beginning of any new education or nonprofit job, when reviewing benefits during annual enrollment, when considering whether to bump contributions after a raise, or when checking that you're on track for retirement.
For 403(b) participants specifically, this calculator is also useful for evaluating provider switches. Many 403(b) plans, especially in school districts, have been historically saddled with high-fee annuity products marketed by insurance companies. The SECURE Act and various reforms have improved provider options, but checking that your investment expenses are below ~0.50% of assets (preferably below 0.20% via low-cost index funds) is critical to long-term outcomes. The calculator output assumes a clean expected return — fees of 1–2% silently shrink it materially.
Pair this with the 401(k) calculator (most comparison material), the IRA calculator (for additional retirement savings beyond the 403(b)), the Roth-vs-Traditional and Roth-vs-Traditional-401(k) calculators (since many 403(b)s now offer Roth options), the pension calculator (since many public-sector workers also have a pension), and the retirement-savings calculator (the broader projection).
For public school teachers and other government workers, the 403(b) often comes alongside a separate pension plan. The two work together — the pension provides a base income floor; the 403(b) provides retirement income flexibility above that floor. Many financial plans for educators rely heavily on the pension and lightly on the 403(b); be aware of pension funding status and possible benefit reductions to make sure the 403(b) is sized appropriately as backup.
A note on 403(b) Roth options: most modern 403(b) plans now offer Roth treatment (after-tax contributions, tax-free growth and withdrawals). For workers in lower-than-expected retirement tax brackets, the Roth choice can save significant taxes over decades. Run the Roth-vs-Traditional-401(k) calculator with your specific numbers to decide.
Estimate your 401(k) balance at retirement with employer matching and investment growth.
Project your retirement savings growth and see if you are on track.
Compare Roth and Traditional IRA/401(k) to see which is better for you.
Compare Roth 401(k) and Traditional 401(k) to see which gives you more in retirement.
Calculate when you can achieve Financial Independence and Retire Early (FIRE).
Estimate your pension benefit based on years of service, salary, and benefit formula.
Percentage your employer matches (e.g., 50% = 50 cents per dollar)
Employer matches contributions up to this % of your salary
Projected Balance
$798,059
Your Contributions
$208,197
Employer Contributions
$62,459
Investment Growth
$502,403
| Year | Salary | Your Contribution | Employer Match | Growth | End Balance |
|---|---|---|---|---|---|
| 1 | $65,000.00 | $6,500.00 | $1,950.00 | $2,045.75 | $35,495.75 |
| 2 | $66,300.00 | $6,630.00 | $1,989.00 | $2,786.37 | $46,901.12 |
| 3 | $67,626.00 | $6,762.60 | $2,028.78 | $3,590.78 | $59,283.27 |
| 4 | $68,978.52 | $6,897.85 | $2,069.36 | $4,463.68 | $72,714.16 |
| 5 | $70,358.09 | $7,035.81 | $2,110.74 | $5,410.12 | $87,270.84 |
| 6 | $71,765.25 | $7,176.53 | $2,152.96 | $6,435.49 | $103,035.81 |
| 7 | $73,200.56 | $7,320.06 | $2,196.02 | $7,545.57 | $120,097.45 |
| 8 | $74,664.57 | $7,466.46 | $2,239.94 | $8,746.55 | $138,550.39 |
| 9 | $76,157.86 | $7,615.79 | $2,284.74 | $10,045.05 | $158,495.96 |
| 10 | $77,681.02 | $7,768.10 | $2,330.43 | $11,448.17 | $180,042.65 |
| 11 | $79,234.64 | $7,923.46 | $2,377.04 | $12,963.50 | $203,306.66 |
| 12 | $80,819.33 | $8,081.93 | $2,424.58 | $14,599.19 | $228,412.37 |