Finance Calculators
Work out loans, interest and discounts with quick, accurate calculators.
- Tip CalculatorInstantly split any bill and calculate the right tip per person — free, private, no sign-up.
- Discount CalculatorGet the exact sale price and true savings — and see why stacked coupons (20% then 10%) equal 28% off, not 30%.
- Mortgage CalculatorEstimate your monthly mortgage payment, total interest, and full amortization schedule instantly in your browser — no signup, no data leaves your device.
- Compound Interest CalculatorSee how a lump sum grows with compound interest — and how the compounding frequency changes the result.
- Car Loan CalculatorEstimate your monthly auto loan payment, total interest, and total cost in seconds.
- Savings CalculatorSee what regular deposits plus a starting balance grow to, with the contribution vs. interest split shown separately.
- Inflation CalculatorSee how a fixed annual inflation rate erodes your money's future cost and buying power.
- Home Affordability CalculatorFind the maximum home price you can afford from your income, debts, and down payment using the 28/36 rule.
- Simple Interest CalculatorCalculate flat, non-compounding interest on a principal in seconds.
- Retirement CalculatorProject your retirement nest egg and estimate monthly income with the 4% rule.
- Loan Payoff CalculatorSee exactly how many months it takes to pay off a debt at a fixed monthly payment.
- ROI CalculatorCalculate return on investment and net profit instantly, with optional annualized ROI.
- Social Security COLA CalculatorEstimate a monthly Social Security amount with nine official historical COLA rates or a clearly separated projected 2027 scenario, using transparent SSA-style whole-dollar truncation.
About these tools
Every tool in finance calculators runs locally in your browser: files are processed on your device and never uploaded to a server. That makes them fast, private and safe to use with sensitive documents, at work or at home.