Finance Calculators
9 free tools · Plan big money decisions with clear numbers: payments, take-home pay, interest and full schedules.
Mortgage Calculator
See your true monthly house payment, including taxes, insurance, PMI and HOA fees, with a year-by-year amortization schedule.
Paycheck Calculator
Estimate your take-home pay after federal tax, FICA, state tax and pre-tax deductions, per paycheck and per year.
Loan Calculator
Calculate the monthly payment and total interest for any personal, auto or student loan.
Auto Loan Calculator
Estimate your monthly car payment with sales tax, fees, down payment and trade-in, and see the real total cost.
Retirement Calculator
See how much your 401(k) or retirement savings could grow, including your employer match.
Zakat Calculator
Work out the zakat you owe with live gold and silver prices for the nisab, in your own currency.
Compound Interest Calculator
See how your money grows over time with compound interest and regular contributions.
Credit Card Payoff Calculator
See how long it takes to become debt-free and how much interest you save by paying more each month.
Salary to Hourly Calculator
Convert between hourly wage and annual salary, and see what you earn per day, week, month and year.
Which finance calculator do I need?
| If you want to… | Use |
|---|---|
| Know the real monthly cost of a house | Mortgage Calculator |
| See your take-home pay after tax | Paycheck Calculator |
| Compare personal or student loan offers | Loan Calculator |
| Budget for a new or used car | Auto Loan Calculator |
| Plan how fast you can clear card debt | Credit Card Payoff Calculator |
| See how savings and investments grow | Compound Interest Calculator |
| Check if you're on track for retirement | Retirement Calculator |
| Work out zakat on your wealth | Zakat Calculator |
Accurate, transparent formulas
Every calculator uses the standard formulas lenders, payroll systems and financial planners use: the amortization formula for loans and mortgages, the official 2026 IRS brackets and FICA rates for paychecks, and compound growth for savings. Each tool explains its method and shows a full breakdown or schedule, so you can check every number.
Results are estimates for planning. For big decisions, compare offers from several lenders and talk to a qualified financial adviser.
Frequently asked questions
Are these finance calculators free?
Yes, all of them are free with no sign-up, and your numbers are calculated in your browser, so nothing you enter is stored.
How accurate are the results?
They use the same formulas as lenders and payroll systems, so they are very close for typical cases. Actual offers can differ because of fees, credit score, local taxes and rounding.