Personal Finance calculators
Project CD interest and 401(k) growth with current IRS limits and transparent assumptions.
CD CalculatorSee what a certificate of deposit will be worth at maturity, how much interest it earns and how the balance grows over the term.401(k) CalculatorProject how your 401(k) could grow by retirement, including your employer match, raises and the 2026 IRS contribution limits.
Personal Finance guides
How CD Interest Works: APY, Compounding and What You'll Actually EarnUnderstand how certificates of deposit earn interest, the difference between APY and interest rate, how compounding frequency matters, and how to calculate your return.
CD vs. High-Yield Savings Account: Which Is Better for Your Money?Compare certificates of deposit and high-yield savings accounts on rate, access, risk and flexibility, with a worked example and a simple way to decide.
How to Build a CD Ladder: Steady Access, Better Rates, Less Timing RiskBuild a CD ladder step by step, compare it with a single long CD, and see how ladders balance access to cash with higher long-term rates. Includes a worked example.
401(k) Contribution Limits for 2026: Employee, Catch-Up and Total LimitsThe 2026 IRS limits for 401(k), 403(b), 457 and TSP plans: $24,500 employee deferral, $8,000 catch-up, $11,250 for ages 60–63, and the $72,000 total limit.
How a 401(k) Employer Match Works: Formulas, Vesting and Getting the Full MatchUnderstand common 401(k) matching formulas, calculate how much your employer contributes, learn how vesting works, and make sure you don't leave free money on the table.
Traditional vs. Roth 401(k): How to Choose (or Use Both)Compare traditional and Roth 401(k) contributions: when you pay tax, how withdrawals work, required minimum distributions, and how to decide based on your tax rate.