Mortgage Calculator
Compute mortgage payments, interest and totals.
Results
Payment per period
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Total interest
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Total paid
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How this mortgage calculator works
We compute your periodic payment using the standard amortization formula:
Payment = P × r × (1 + r)^n / [(1 + r)^n − 1]
Where:
- P = principal (loan amount)
- r = periodic rate (APR ÷ payments per year)
- n = total number of payments (years × payments per year)
Assumptions
- Fixed APR across the term
- Payments at regular intervals
- Optional extra payment added to each period
Example
For $300,000 at 6.5% over 25 years (12 payments/year), payment ≈ $2,021.60.
The total interest paid would be $306,480.00, and the total amount paid would be $606,480.00.