Adjustable-Rate Mortgage Calculator

Adjustable-Rate Mortgage (ARM)

See your initial payment, best-case payment (index + margin), and worst-case payment at the lifetime cap.

Loan amount ($)

Initial rate (%)

Initial period (years)

Margin (%)

Index rate (%)

Periodic adjustment cap (%)

Lifetime cap (% over initial)

Total term (years)

Initial payment

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Expected rate after reset (index + margin)

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Expected payment after reset

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Worst-case rate (lifetime cap)

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Worst-case payment

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Worst-case assumes the rate hits the lifetime cap at the first adjustment.