Finance Calculators
◆ Money & PlanningWhat a loan really costs, what savings grow to and whether buying beats renting, worked out with real amortisation rather than rough estimates.
Mortgage Calculator
Monthly payment, total cost and total interest for any home loan, term and rate.
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Compound Interest
Future value and interest earned on savings and investments, at any compounding frequency.
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Tip Calculator
Tip amount, total bill and each person's share, for any percentage and any group size.
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Loan Calculator
Work out the monthly payment on a car, personal, student or business loan, see the total interest, and add extra payments to watch the payoff date move closer.
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Investment Calculator
Grow a starting amount plus monthly or yearly contributions at an expected rate of return, with contribution timing, inflation adjustment and a year-by-year schedule.
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Car Payment Calculator
Turn a sticker price into the payment you will actually make, with sales tax and the trade-in credit, title and dealer fees, negative equity, and a line-by-line breakdown of the amount financed.
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401(k) Calculator
Project your 401(k) to retirement with salary growth, the employer match modelled properly and the IRS deferral limit applied, plus what under-matching costs you.
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Rent vs Buy Calculator
Compare renting against buying month by month and find the break-even year, with the down payment invested on the renting side and selling costs deducted from the home, which is what most calculators leave out.
Open calculatorLooking for everyday calculators?
Dates, grades, unit conversions, random draws and number bases.
Finance calculators for loans, savings and the big decisions
The finance calculators answer the questions that decide what a deal is worth: what the monthly payment is, how much of it is interest, and what the whole thing costs by the end. Every projection is built from a real month-by-month schedule, so the totals hold up rather than approximating.
The mortgage, loan and car payment calculators work from the price, rate and term through tax, fees and a trade-in to the payment you would actually sign for. The compound interest, investment and 401(k) calculators run the same maths in the other direction, splitting a final balance into what you paid in and what growth added.
For the decisions with no obvious answer, the rent versus buy calculator reports the break-even year at which a buyer overtakes a renter, and the tip calculator settles the bill at the end of the night. None of these pages is financial advice, and each one states the assumptions it is making.
Frequently Asked Questions
Are these finance calculators free to use?
Yes. Every finance calculator here is 100% free, with no sign-up and no limits, and each one runs entirely in your browser.
Do these calculators count as financial advice?
No. They are information tools that show the arithmetic behind a payment or a projection. For decisions that matter, talk to a qualified adviser.
Are my figures sent anywhere?
No. Salaries, balances and loan details are calculated locally in your browser, and nothing you type is uploaded, stored or shared.
Do the results include tax and fees?
Where they apply, yes. The car payment calculator handles sales tax, title and dealer fees, and the mortgage and rent versus buy pages include property tax, insurance and maintenance. Investment projections are gross, so subtract fund fees from the return you enter.