Use this 401(k) retirement calculator to project your future account balance based on contributions, employer matching, salary growth and investment returns. Explore year-by-year results, inflation-adjusted value, fees, $100K/$500K/$1M milestones and 2026 contribution limits, plus guidance on Traditional vs Roth 401(k) choices from FinanceNovels team. https://financenovels.com/finance-tools/401k-calculator/