How to use this down payment calculator
- Home price, enter the purchase price of the property.
- Down payment %, type a percent or tap a quick-pick button (3.5, 5, 10 or 20).
- Read your down payment amount, loan amount and LTV, they update instantly as you type.
Nothing is submitted or stored: the numbers never leave your device, so you can compare scenarios privately.
How a down payment works
A down payment is the share of the purchase price you pay in cash up front, with the rest covered by a mortgage. The maths is simple: your down payment = home price × down payment percent, and yourloan amount = home price - down payment. So a 10 percent down payment on a 350,000 home is 35,000 in cash, leaving 315,000 to borrow.
Lenders also look at loan-to-value (LTV), which is the loan amount ÷ home price, shown as a percent. A bigger down payment lowers your LTV, and a lower LTV is generally seen as less risky. In the US, a down payment of 20 percent or more (an LTV of 80 percent or below) usually lets you avoid private mortgage insurance (PMI) on a conventional loan, which can meaningfully reduce your monthly cost.
Note: This is a general estimate, not financial advice. It does not include closing costs, taxes, insurance, fees or interest. Loan rules and minimum down payments vary by country, lender and loan type, so check the figures with your lender before you commit.
Frequently asked questions
How do I calculate a down payment?
Multiply the home price by your down payment percent, then divide by 100. For example, 10 percent of a 350,000 home is a 35,000 down payment.
What is the loan amount?
The loan amount is the home price minus your down payment. On a 350,000 home with a 35,000 down payment, you would borrow 315,000.
What is loan-to-value (LTV)?
Loan-to-value is the loan amount divided by the home price, shown as a percent. A larger down payment means a lower LTV, which lenders generally see as less risky.
How much down payment do I need to avoid PMI?
In the US, putting down 20 percent or more (an LTV of 80 percent or below) usually lets you avoid private mortgage insurance (PMI) on a conventional loan.
Is my data uploaded?
No, everything is calculated on your device and nothing is sent anywhere.