Finance calculators
Free online calculators for loans, mortgages, investments, retirement, taxes, and anything money-related.
Money questions come up all the time, and most of them don’t need a spreadsheet. Pick a calculator below.
- Auto Loan Calculator
Calculate the monthly car payment, total interest, and full amortization schedule for any auto loan, including down payment, trade-in, sales tax, and fees.
- Compound Interest Calculator
See how interest compounds on a lump sum or regular contributions over time, with a year-by-year breakdown and support for any compounding frequency.
- Income Tax Calculator
Estimate 2024 US federal income tax — federal income tax by bracket, Social Security, Medicare (FICA), and self-employment tax. Simple and extended mode with 401(k) and itemized deduction support.
- Loan Calculator
Calculate the monthly payment, total interest, and payoff time for any fixed-rate installment loan — personal, student, or auto — with optional extra payments.
- Mortgage Calculator
Work out the monthly payment, total interest, and full amortization schedule for a fixed-rate mortgage, with optional extra payments, property tax, insurance, HOA, and PMI.
- Retirement Calculator
Project your retirement nest egg with inflation adjustment and the 4% safe withdrawal rate. Shows nominal and real portfolio value, annual and monthly income, and a year-by-year schedule.