Updated · Built and checked by the PlinzoTools team, formulas tested against published sources
Calculate the down payment and resulting loan amount from a home price and down payment percentage.
This tool calculates your down payment amount as home price × down payment percentage, along with the resulting loan amount you'd need to finance the rest.
Enter the home price and your target down payment percentage (20% is a common benchmark for avoiding PMI). The down payment amount and loan amount appear instantly.
The calculator multiplies the home price by your down payment percentage divided by 100 to get the down payment, then subtracts that from the price to show the loan amount. There are no fees, closing costs, or interest in the calculation, so the loan amount is simply the purchase price minus what you pay up front.
Down payment = price x (percent / 100); Loan amount = price - down payment
Imagine a 350,000 dollar home. At 20 percent down, the down payment is 70,000 dollars and the loan amount is 280,000 dollars. At 10 percent down, the down payment drops to 35,000 dollars and the loan rises to 315,000 dollars. At 5 percent down you would put in 17,500 dollars and borrow 332,500 dollars. Comparing these side by side shows the trade-off: every extra 35,000 dollars you bring to the table reduces the amount you borrow by exactly the same amount, which in turn lowers the interest you pay over the life of the loan and may reduce or remove mortgage insurance.
The down payment is only part of the cash you need at purchase. Closing costs, prepaid taxes and insurance, inspection and appraisal fees, moving expenses, and a reserve for early repairs are separate. Lenders and loan programs also differ in how much cash they require, whether gift funds or assistance programs can be used, and how much must come from your own savings. Ask a lender for a written estimate of total cash to close.
A larger down payment generally lowers your monthly payment and total interest, and can improve the terms a lender offers. On the other hand, draining your savings can leave you without an emergency fund, which is risky for a new homeowner facing surprise repairs. Some buyers choose a smaller down payment and keep more cash on hand, accepting mortgage insurance in exchange for liquidity. There is no universally right answer, and it depends on your income stability, other debts, and the loan terms actually available to you.
For personalized guidance, speak with a licensed mortgage professional or a HUD-approved housing counselor.
No -- many loan programs allow much lower down payments (some as low as 3-3.5%), though a down payment under 20% typically requires PMI (see the PMI Calculator). 20% is a common reference point for avoiding that extra cost, not a strict requirement.
The down payment would be 100,000 dollars and the loan amount 300,000 dollars. This is just an illustration of the formula: price times the percentage for the down payment, and the remainder is the loan.
No. The calculator only splits the purchase price between your down payment and the financed balance. Closing costs and other fees are additional cash you would need.
Yes. The percentage field accepts decimals, so 3.5 is treated as 3.5 percent of the home price.
It usually reduces the amount borrowed and interest paid, but it also ties up cash. Weigh that against keeping an emergency reserve and your other financial goals.
Reference: Consumer Financial Protection Bureau
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9/25/2026