Smart Calculator Hub

Investment & Retirement Calculators

Model long-term growth, retirement readiness, and investing strategies with interactive charts. Popular tools include 401k Calculator, Annuity Calculator, Compound Interest Calculator, and more.

401k Calculator

Project 401k growth by combining employee contributions, employer matches, investment returns, and annual limits to understand long-term retirement balances.

Annuity Calculator

Calculate annuity payouts, present value, and accumulation by adjusting contribution schedules, rates, and terms to plan reliable retirement or income streams.

Compound Interest Calculator

Visualize compound interest growth with one-time and recurring contributions, adjusting rate, timeline, and compounding frequency to project future balances.

FIRE Calculator

Plan your Financial Independence Retire Early path by modeling savings rate, expenses, investment returns, and retirement age to estimate your FI timeline.

Investment Property Calculator

Evaluate rental property cash flow, ROI, cap rate, and expenses to understand profitability, monthly income, and long-term returns before you invest.

Investment Return Calculator

Calculate investment performance using starting value, contributions, ending balance, and time to see total return, annualized return, and growth trends.

Retirement Calculator

Plan retirement savings by modeling contributions, investment returns, inflation, and withdrawal needs to see whether you're on track for your target lifestyle.

Roth IRA Calculator

Estimate Roth IRA contributions, growth, and tax-free withdrawals by adjusting income, age, and returns so you can maximize retirement savings opportunities.

Rule of 72 Calculator

Use the Rule of 72 to estimate how quickly investments double based on different interest rates, helping you compare growth scenarios and set expectations.

Savings Calculator

Project savings growth with recurring deposits, interest rate changes, and timelines so you can visualize balances, interest earned, and progress toward goals.

Stock Profit Calculator

Calculate stock trade profits or losses by entering purchase and sale details, fees, and share counts to review returns and plan future investing moves.