How much does a $450,000 mortgage cost per month at 6.75%?

With a 20% down payment ($90,000) on a 30-year fixed loan at 6.75%, the monthly Principal & Interest is approximately $2,335/mo. Adding typical property taxes and insurance brings total PITI to ~$2,935/mo.

Updated: August 2026 • Verified v1.2

Mortgage Payment & Monthly PITI Calculator

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Monthly P&I = Principal * [r(1+r)^n] / [(1+r)^n - 1]; PITI = P&I + Tax/12 + Ins/12 + PMI

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Understanding Your Results

Calculates monthly P&I, monthly property tax, insurance, PMI, total loan interest paid, and total lifetime cost of home ownership.

Practical Guidance & Next Steps

Putting at least 20% down avoids Private Mortgage Insurance (PMI) fees, saving $100-$250 per month.

What is this?

A real estate finance tool that calculates true monthly home ownership costs across fixed loan terms.

How does it work?

1. Enter Home Purchase Price and Down Payment %. 2. Set Interest Rate APR and Loan Term (30, 20, or 15 Years). 3. Add annual property taxes and homeowners insurance to view complete itemized PITI monthly payments.