Financial Calculators
16 free calculators for the money decisions people search for most — car loans, savings, mortgages, debt payoff and retirement. No signup, and everything runs in your browser.
Car loan calculators
Price a specific loan, or start from your income to see what car actually fits your budget.
Guides: How much car can I afford?What is the average car payment?Car Loan Cost Index
Savings and interest calculators
See what your savings earn, compare rates on the same balance, and size the cushion you should keep.
Guides: Best high-yield savings accountsHow to build an emergency fundSimple vs compound interest
Salary and income calculators
Turn a salary into an hourly rate (or the other way round), then see the rent, car and home that income covers.
Guides: $50,000 a year: what it affords$60,000 a year: what it affords$100,000 a year: what it affords
Mortgage and home buying
Turn a home price into a monthly payment and total interest before you talk to a lender.
Guides: How much house can I afford?Home Affordability IndexHow to get rid of PMI
Debt payoff calculators
Find your payoff date and how much interest extra payments save on cards and loans.
Guides: Debt snowball vs avalancheHow to pay off credit card debtHow to pay off a loan faster
Retirement and investing calculators
Project a 401(k) or Roth IRA balance and check whether you are on track for retirement.
Guides: 401(k) vs Roth IRAHow much to contribute to a 401(k)401(k) employer match explained
How our calculators work
Standard formulas
Loans and mortgages use standard fixed-rate amortization; savings and investment tools use compound growth. The same math powers our data studies, so the research and the tools never disagree.
Your numbers stay on your device
Every calculation runs in your browser. The figures you type are not sent to us or stored — the only thing remembered is your currency choice, on your own device.
Sourced, dated figures
Where a page uses a real-world figure it names the source and the period — Experian’s Q2 2026 average new-car APR in the car affordability examples, the IRS’s 2026 limits on the 401(k) and Roth IRA pages.
Free, with no signup
No account, no email, no paywall and no lead form. Results are estimates for planning, not offers or financial advice.
Research built on the same math: the Home Affordability Index applies the mortgage calculator's formula to median prices in 50 US metros, and the Car Loan Cost Index uses the auto loan math to show what a longer term really costs. Unsure about a term? The personal finance glossary defines 43 of them in one sentence each.
Frequently asked questions
- Yes. All 16 calculators are free to use, with no signup, paywall or lead form — open one and it works.
- No. Every calculation runs in your browser, and the figures you enter are not sent to us or saved. The only thing remembered is your currency choice, stored on your own device.
- They use standard formulas — fixed-rate amortization for loans and mortgages, compound growth for savings and investments — so the math is exact for the inputs you give. Real offers still differ: lenders add fees and price rates on your credit, and costs such as taxes and insurance vary, so treat the results as estimates rather than quotes.
- Use the Car Affordability Calculator. It starts from your gross income and existing debts and works out the maximum monthly payment, loan and car price. The Auto Loan Calculator runs the other way, from a car’s price to its monthly payment and total interest.
- The APY Calculator compares what different rates earn on the same balance. The Savings Calculator adds regular monthly deposits, and the Compound Interest Calculator shows how the compounding frequency changes growth.
- The Mortgage Calculator turns a home price into a monthly payment and total interest. To work the other way, from income to price, read How Much House Can I Afford? and see the Home Affordability Index, which applies the 28% rule to median prices in 50 US metros.