10/1 ARM Calculator
Estimate your monthly payment on a 10/1 ARM during the initial fixed-rate period and after the first adjustment.
Understanding a 10/1 ARM
A 10/1 adjustable-rate mortgage (ARM) offers a fixed interest rate for the first 10 years, after which the rate adjusts annually based on market conditions. This calculator estimates your monthly payment during the fixed period and gives an illustrative estimate for after the first adjustment.
How it works
Using the standard amortization formula, the calculator computes your fixed-period payment from the loan amount, initial rate, and full loan term. It then tracks the remaining balance after 10 years of payments and recalculates a new payment over the remaining term using your estimated adjusted rate.
Actual ARM adjustments depend on the specific index, margin, and rate caps in your loan agreement, which can differ from the simple estimate used here. This tool is for general planning only, not a loan offer.