Amortization Schedule Calculator

See exactly where every mortgage payment goes — principal vs. interest, month by month, from your first payment to a zero balance.

What an amortization schedule shows

An amortization schedule is the full table of your mortgage payments over the life of the loan. Early on, most of each payment is interest and only a little chips away at the balance; as the balance shrinks, more of every payment goes to principal. The schedule makes that shift visible and shows your running balance and cumulative interest at any point.

How to read it

• Principal — the part of the payment that reduces what you owe.
• Interest — the cost of borrowing that month, based on the current balance.
• Balance — what's left to pay after the payment is applied.
• Total interest — the running sum, so you can see the true cost of the loan.

Do it in Hearth

Hearth builds the full schedule live as you move the sliders — loan amount, rate, term, and payment frequency — and charts principal-vs-interest and equity-vs-balance alongside it, so you can watch a rate or term change reshape the whole loan instantly.

Frequently asked questions