See how your retirement savings could grow — contributions, employer match, and interest combined
💡 Why This Matters If you work in education, nonprofits, or public service, your 403(b) is probably your main retirement account. See what your current contribution rate — plus employer match — could actually add up to by the time you retire.
403(b) plans got their name from the specific IRS tax code section that created them — same idea as a 401(k), just for a different employer category.
As an Amazon Associate we earn from qualifying purchases.
We do our best to link products that we genuinely believe are organic, no disposable junk, sustainable, and built to last.
Your annual salary times your contribution percentage gives your yearly employee contribution; your employer match percentage works the same way. Combined and divided by 12, that's your monthly deposit. That deposit compounds alongside your current balance at your entered rate of return — the calculator adds the growth on your existing balance to the growth on every future monthly contribution to reach your projected total.
The projected balance is your estimate of what you'll have at retirement if your salary, contribution rate, and return stay consistent. The breakdown separates total contributions (yours plus your employer's match) from investment growth — that growth figure represents money compounding does for you beyond what anyone directly put in.
This assumes a flat salary and consistent contribution rate over the full period, when in reality most people get raises and may adjust contributions over a career. It also uses a fixed average return, while real markets fluctuate year to year. Employer match structures vary — some cap the match differently or use a partial-match formula rather than a flat percentage.
If you're not contributing enough to capture your full employer match, that's usually the first adjustment worth making — it's an immediate, guaranteed boost to your effective contribution rate. From there, try increasing your own contribution percentage even modestly and re-running the numbers to see the long-term impact.
Example: Say you have a $20,000 current balance, earn a $60,000 salary, contribute 8% of that yourself, and your employer matches 3%, all growing at a 7% average return over 25 years. Your combined monthly contribution comes to $550. Compound that alongside your starting balance and you'd have $560,047.80 at retirement — $185,000 of that from contributions, and $375,047.80 from growth.
Your employee contribution and employer match are combined into a monthly deposit, which compounds alongside your current balance at your entered rate of return. The calculator adds the growth on your existing balance to the growth on every future combined contribution to project your total.
They work almost identically — both are employer-sponsored, tax-advantaged retirement accounts with similar contribution limits. The main difference is who offers them: 403(b) plans are for employees of public schools, nonprofits, and certain government organizations, while 401(k) plans are offered by private-sector employers.
In almost every case, yes — an employer match is essentially free money that immediately boosts your contribution rate. Missing out on a full match is one of the most common retirement savings mistakes, since it's return you can't replicate anywhere else.
It depends heavily on your specific fund choices within the plan — 403(b) plans sometimes have more limited investment options than 401(k)s, occasionally with higher fees. A long-term average between 5-8% is a reasonable planning estimate for a diversified stock-heavy allocation, but check your plan's actual fund performance for a more precise number.