Mortgage guides and free calculators for U.S. homebuyers
Clear, practical guides to home loans, refinancing and first-time buying, plus free calculators to run your own numbers.
Free mortgage calculators
Run your own numbers before you talk to a lender.
Mortgage Calculator
Your monthly payment with taxes, insurance and PMI.
How Much House Can I Afford
A realistic price range for your income and debts.
Rent vs Buy Calculator
Compare the true cost of renting and owning.
Mortgage Payoff Calculator
See how extra payments shorten your loan.
Debt-to-Income Calculator
Check your DTI against lender limits.
Mortgage Points Calculator
Find out when buying points actually pays off.
Latest guides
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Mortgage Payoff Calculator: See How Extra Payments Save You Years
Paying a little more toward your mortgage each month can cut years off your loan and…
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Best Mortgage Refinance Lenders of 2026: 6 Top Picks Compared
Refinancing can lower your monthly payment, shorten your loan term, remove mortgage insurance, or turn home…
Topics
- Best Lenders (4)
- Calculators (4)
- Home Buying (12)
- Loan Types (7)
- Refinancing (4)
Hi, I’m José María
I started Finanzasclave to explain mortgages and home buying in plain English, with clear examples and free calculators you can use before talking to a lender.
Buying your first home?
Start with the basics: how much you need for a down payment, how pre-approval works and what closing costs to expect.







