How do I use the Mortgage Calculator?

Rate is entered as APR (e.g. 6.5 for 6.5%) Term is in years; most US mortgages are 30 or 15 Total interest can exceed the principal on 30-year loans

Is the Mortgage Calculator free and private?

Yes — it runs in your browser, requires no signup for basic use, and your data never leaves your device. The modern 30-year fixed mortgage was invented by the US federal government via the HOLC in 1933 — before then, most mortgages were 5-year balloon loans.

DevTools Surf

Sign in

Mortgage Calculator

Monthly payment + total interest for any loan amount, rate, term

1 credit

principal=… rate=% years=30

Monthly + Total

Sign in to use this tool

Related Calculators Tools

Basic Calculator Percentage Calculator Unit Converter Loan / EMI Calculator Number Formatter Tip Calculator BMI Calculator Compound Interest Calculator