Mortgage Calculators

ARM vs Fixed Rate Mortgage

This calculator will help you compare a fixed rate mortgage with both fully-amortizing and interest-only adjustable rate mortgages (ARMs).

Loan Information
Mortgage loan amount:
Mortgage loan term:
Expected adjustment (%):
Fixed Rate Mortgage
Fixed interest rate (%):
Fully Amortized Adjustable Rate Mortgage
Beginning interest rate (%):
Number of months before first rate adjustment:
Interest rate cap (%):
Interest-Only Adjustable Rate Mortgage
Beginning interest rate (%):
Number of months before first rate adjustment:
Interest rate cap (%):
Comparison Results Fixed ARM Interest-Only ARM
Beginning monthly principal and interest payment:
Total monthly payments:
Total interest:
Maximum monthly payment: