Financial & Investment Calculators
Practical financial modeling calculators for long-term compound growth, retirement safe withdrawal rates, currency exchange, and bill splitting. Browse all 10 calculators below with automatic unit conversions.
Retirement Calculator
Project your retirement savings, monthly contributions, and 4% rule annual withdrawal income.
Investment Calculator
Calculate investment growth, compound returns, total contributions, ROI, and CAGR over time.
APR Calculator (Annual Percentage Rate)
Calculate the true Annual Percentage Rate (APR) factoring in upfront points, lender fees, and closing costs.
Refinance Calculator
Evaluate refinance monthly payment savings, break-even months, and lifetime interest reductions.
Simple Interest Calculator
Calculate simple interest, total repayment, and daily or monthly rates using I = P × r × t.
Future Value Calculator
Calculate future value (FV) of a lump sum and periodic deposits with compounding frequency options.
Business Loan Calculator
Estimate commercial debt service, monthly installments, and Debt Service Coverage Ratio (DSCR).
Debt Payoff Calculator
Calculate debt payoff schedule, interest saved, and acceleration compared to minimum payment rules.
Fuel Cost Calculator
Calculate road trip fuel expense, gallons needed, and per-mile cost from distance, MPG, and fuel price.
Savings Calculator
Calculate savings account growth with APY interest, recurring deposits, and purchasing power adjustments.