Interest Only ARM Calculator

Calculate payments for an interest-only adjustable-rate mortgage.

  • Methods explained
  • Save scenarios
  • Compare saved scenarios

Loan Details

$
30 years
%
5 years
%

Payment Summary

Interest-Only Payment$1,375
Fully Amortized Payment$2,120
Payment Increase$745
Total Interest$418,601
Total Payment$718,601
How it works›

Model and assumptions. Applies the entered introductory rate, adjustment assumptions and caps to the modeled payments. Amortizing payments use the remaining balance and term; interest-only payments cover interest without scheduled principal reduction. Future index rates, lender rounding and contract-specific recast rules can change the outcome.CFPB: adjustable-rate mortgagesOpenStax: annuity formulas