Mortgages calculators
A mortgage is likely the largest financial commitment you'll make. These calculators help you understand the true monthly cost of a home, how much interest you'll pay over the life of the loan, and how extra payments change the math.
Mortgage Calculator
Estimate your full monthly home payment.
CalculateMortgage Affordability Calculator
How much house can you afford?
CalculateRent vs. Buy Calculator
Compare the long-term cost of renting and owning.
CalculateDown Payment Calculator
Compare 3%, 5%, 10%, and 20% down.
CalculateMortgage Refinance Calculator
See your monthly savings and break-even point.
CalculateProperty Tax Calculator
Estimate your annual and monthly property tax.
CalculateHome Equity Calculator
See how much equity you've built.
CalculateExtra Mortgage Payment Calculator
See how extra payments cut payoff time and interest.
CalculateClosing Cost Calculator
Estimate what you'll pay at closing.
CalculateBiweekly Mortgage Calculator
See how biweekly payments save interest.
CalculateHELOC Payment Calculator
Estimate draw and repayment payments.
CalculateMortgage Points Calculator
See if buying points pays off.
CalculateARM Mortgage Calculator
See your initial payment and the possible jump.
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Frequently asked questions
Are NumberPilot's calculators free to use?
Yes. Every calculator on NumberPilot is completely free, with no signup, account, or subscription required. There are no usage limits.
Do you store the numbers I enter?
No. All calculations run entirely in your browser. The values you type are never sent to our servers. Optionally, we save only the names of calculators you've used in your browser's local storage so we can show a 'recently used' list — you can clear this anytime.
How accurate are the results?
Our calculators use standard, well-established financial formulas and are unit-tested for accuracy across a wide range of inputs. That said, results are estimates for educational purposes and don't account for every real-world variable, so they shouldn't be treated as financial, tax, or legal advice.
Can I use NumberPilot on my phone?
Absolutely. NumberPilot is built mobile-first and works smoothly on phones, tablets, and desktops, with fast load times and responsive layouts.
Will you add more calculators?
Yes. NumberPilot is built on a scalable architecture designed to grow into hundreds of calculators across loans, mortgages, investing, retirement, salary, credit, and everyday math.