Mortgage Comparison Calculator
Compare two mortgage scenarios using standard amortization math (monthly payment, total interest). Doesn’t model variable rates, prepayments, taxes, insurance, or renewal changes.
Scenario A
Scenario B
Loan amount
- Principal (price - down)
- $720,000.00
Scenario A
- Monthly payment
- $4,163.03
- Total interest
- $528,910.06
- Total paid
- $1,248,910.06
Scenario B
- Monthly payment
- $3,643.86
- Total interest
- $591,788.66
- Total paid
- $1,311,788.66
Difference (A - B)
- Monthly payment
- $519.18
- Total interest
- -$62,878.60
- Total paid
- -$62,878.60
Positive means Scenario A costs more than Scenario B.