Financial calculators

Useful math, without pretending the math is the whole decision.

Quick calculators for exploration. Results are estimates, not tax, investment or legal advice.

Future value

Loan payment

Retirement accumulation

More questions worth calculating

Automobile, cash flow, college, credit, home, insurance, paycheck, retirement, savings and taxes.

  • Lease or buy an automobile?
  • Loan versus dealer financing
  • Accelerated loan payoff
  • How much vehicle can I afford?
  • Inflation and purchasing power
  • Household cash-flow review
  • College savings targets
  • Debt payoff comparison
  • Mortgage payment and affordability
  • Rent versus buy
  • Life-insurance need estimate
  • Paycheck withholding scenarios
  • Retirement savings target
  • Required savings rate
  • Investment growth
  • Tax-equivalent yield

The interactive calculators above are intentionally simple. More specialized calculators should be added only when their assumptions can be explained clearly.