Finance Calculators

Plan borrowing, saving and investing with calculators that show the full picture: monthly payments, total interest, amortization and growth over time.

  • 14 tested calculators
  • Formulas explained
  • Private and free

Make better money decisions

Borrowing and saving decisions are made once but felt for years. A mortgage rate half a point lower, a car loan two years shorter, or starting retirement contributions five years earlier can each be worth tens of thousands of dollars. These calculators show the full cost or benefit — not just the monthly number — so you can compare options side by side.

All calculations run in your browser; nothing you enter is sent to us or stored. Results are estimates based on the figures you provide and are not financial advice.