403B Calculator | Calculate Your Retirement Growth Instantly
403(b) Calculator helps you instantly estimate retirement growth, employer match, and tax savings. Compare contribution scenarios and see how your 403(b) could grow over time with smarter planning.
403(b) Savings Calculator
Your total 403(b) savings
$563,624
Total employee contribution
$140,000
Total employer contribution
$0
Savings
Your 403(b) could be worth $563,624 after 35 years.
These projections are based on the assumptions entered in the calculator. Results change when salary, contributions, investment return, or employer contributions change.
How Your Annual Contribution Works
Your employee contribution is calculated from your salary and contribution percentage. Employer contributions are added separately, then the account grows using the net investment return after fees.
Model used: monthly compounding with salary growth applied monthly, while salary rises gradually across the year. Contributions are smoothed through the month for a more realistic projection.
Contribution Limits (2026)
- Standard employee elective deferral limit: $24,500
- Age 50+ catch-up contribution: $8,000
- Age 60–63 enhanced catch-up, when allowed: $11,250
- Some plans may also allow a special 15-year catch-up formula, subject to IRS rules and lifetime limits.
Results Summary
Starting retirement savings balance$1,000
Annual contribution$4,000
Current age30
Age you plan to retire65
Years of retirement projection35
Rate of return before retirement7.0%
Current tax rateNot modeled
Retirement tax rateNot modeled
Inflation rateNot modeled
Employee contribution total$140,000
Employer contribution total$0
Projected ending balance$563,624
403(b) Balance by Year
| Age | Contributions | Ending balance |
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Disclaimer: This calculator is for educational and illustrative purposes only. It is not tax, legal, or investment advice. Results are estimates based on the numbers entered and assume steady market returns, stable contribution behavior, and simplified salary growth. Real 403(b) outcomes can differ because of market volatility, changing employer match formulas, plan fees, contribution limits, vesting rules, tax treatment, inflation, and plan-specific restrictions. Check your plan documents and the IRS rules before making contribution or withdrawal decisions.
