Enter a home price and down payment percentage to get the cash needed and the resulting loan amount.
Understanding the down payment calculation
This calculator works out the down payment in dollars from a percentage, and the loan you’d need for the rest. It also flags whether you’d likely pay private mortgage insurance.
Use it alongside the mortgage calculator to plan a home purchase.
Worked example
On the values this calculator opens with, the down payment is $70,000. Underneath, Down payment comes out at $70,000 and Loan amount at $280,000. Change any field and every figure updates as you type.
Using the calculator
- Enter the home price.
- Enter your down payment percentage.
- Read the cash needed and the loan amount.
The maths behind it
down payment = price × percent
loan = price − down payment
FAQ
How much down payment do I need?
Conventional loans often want 20% to avoid mortgage insurance, but many programs accept far less — sometimes 3–5%.
What is PMI?
Private mortgage insurance, usually required when your down payment is under 20% of the price on a conventional loan.
Does a bigger down payment help?
Yes — it lowers your loan, your monthly payment and total interest, and can remove PMI.