Calculatree

ARM Mortgage Calculator

See your fixed-period payment and what it could become after the rate adjusts.

Inputs

Updates live as you type

How it works

An adjustable-rate mortgage offers a lower intro rate for a fixed period, then resets to a market-based rate. This calculator shows both the teaser payment and a worst-case adjusted payment so you can stress-test the jump.

Frequently asked questions

When does an ARM make sense?

Mainly if you expect to sell or refinance before the fixed period ends, or you are confident rates will fall. If you might still hold the loan at reset, make sure you can afford the higher payment.