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Mortgage calculator

Full PITI with auto-PMI, extra payments, and a shareable amortization report.

$
$
%
%
yr
Taxes, insurance & fees
$
$
$
Extra payments
$
$
$
Estimate
Monthly P&I
$2,528
Full PITI
$3,153
No PMI
Loan amount
$400,000
80.0% LTV
Total interest
$510,178
Payoff
Dec 1999
30 yrs
Balance over time
Baseline
Lifetime cost breakdown
Payment breakdown
Principal & Interest$2,528
Property tax$500
Insurance$125
HOA$0
PMI$0
Total PITI$3,153
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How this works

A mortgage payment is the fixed monthly amount that pays down a home loan, typically bundling principal, interest, property taxes, homeowner's insurance, and — until you cross 80% loan-to-value — private mortgage insurance (PMI).

Standard amortization. Monthly payment = P × r / (1 − (1 + r)−n), where P is loan amount, r is monthly rate, n is total months. 0% rates and 100% down are handled gracefully.

PMI auto-estimate. When your down payment is under 20%, we add a monthly PMI charge (rate slider defaults to 0.8% of loan/yr). PMI drops off the schedule the month your loan-to-value hits 78% — the same threshold lenders use for automatic termination.

Worked example. A $500,000 home at 20% down and 6.5% for 30 years: loan is $400,000, monthly P&I is $2,528. Add $6,000/yr tax + $1,500/yr insurance and full PITI is about $3,153.

Common questions