The formula
Payment = P × r(1+r)ⁿ ÷ [(1+r)ⁿ−1]
Calculations run in your browser. Displayed values are rounded, while intermediate calculations keep their full precision.
What this estimate assumes
- The rate remains fixed.
- Fees, insurance and early repayments are excluded.
- Payments occur monthly.
A quick reality check
US$300,000 for 30 years at 4%
The amortized payment is about US$1,432 and total interest about US$215,609.
Common questions
Why can my lender quote differ?
Day counts, fees, rounding, escrow and payment timing can differ.