Smart money calculators for every big decision
Estimate your mortgage payment, loan cost, take-home paycheck, credit-card payoff and investment growth in seconds. Accurate US formulas, instant results, and nothing to install.
Popular calculators
Mortgage Calculator
Monthly payment with taxes, insurance & total interest over the life of the loan.
Loan Calculator
Monthly payment and total interest for any personal or fixed-rate loan.
Auto Loan Calculator
Car payment including sales tax, down payment and trade-in value.
Paycheck Calculator
Estimate take-home pay after federal tax, FICA, state tax and 401(k).
Credit Card Payoff
See how long payoff takes and how much interest you'll really pay.
Investment / Compound Interest
Project future value with monthly contributions and compounding.
Make confident financial decisions
Big money choices — buying a home, financing a car, paying down a credit card, or investing for retirement — all come down to a few numbers. iViv Finance gives you those numbers instantly, using the same amortization and tax formulas banks and payroll systems use, so you can compare options before you sign anything.
Every tool runs entirely in your browser. We never ask for your name, email, or account details, and your inputs never leave your device. That means you get a private, fast, and free way to plan — whether you're checking if a mortgage fits your budget or seeing how an extra $100 a month changes your credit-card payoff date.
How our calculators work
- Loans & mortgages use the standard fixed-rate amortization formula, so your monthly payment, total interest, and payoff are calculated exactly as a lender would.
- The paycheck estimator applies current federal income-tax brackets, Social Security and Medicare (FICA), and your state rate to approximate real take-home pay.
- The investing tool uses monthly compounding with recurring contributions to project long-term growth.
Frequently asked questions
Are these calculators free to use?
Yes. Every calculator on iViv Finance is completely free, requires no account, and has no usage limits.
Do you store the numbers I enter?
No. All calculations happen locally in your browser. We don't transmit or save your figures.
How accurate are the results?
Loan and mortgage math is exact. Tax and paycheck figures are careful estimates based on published federal rates and your inputs — always confirm with a professional before major decisions.