Mortgage 30-year Interest Calculator

Calculate total interest paid on a Mortgage 30-year fixed-rate loan. Enter principal and rate to see interest over the life of the loan.

Calculate your payment

Enter values to calculate.

How it works

We use standard amortization to compute total interest for the loan term.

When to use it

Use when comparing loan types and terms or planning payoff.

Frequently asked questions

How is interest calculated?

We use standard amortization; interest is front-loaded.

Does this include fees?

No. This is interest only; fees are separate.