See how much cash you need to put down on a house. Enter the home price and your down payment percent to find your down payment amount, loan size, estimated monthly payment, and whether you reach the 20% mark that typically avoids PMI.
✓ Updated July 2026Formula-basedNo signupNothing stored
Your down payment is simply the home price multiplied by the percent you put down: a 10% down payment on a $400,000 home is $40,000. The rest becomes your loan amount (price minus down payment). The estimated monthly payment uses the standard amortizing-loan formula on that loan amount for principal and interest only. The calculator also shows how much more cash you would need to reach 20% down, which typically lets you avoid private mortgage insurance (PMI) and lowers your monthly cost. Taxes, insurance, HOA dues, and PMI itself are billed on top of the principal-and-interest figure shown here.
A 20% down payment typically lets you avoid PMI and lowers your monthly payment, but many loan programs allow far less — some conventional loans accept 3% to 5%, and government-backed programs can go lower. More down means a smaller loan and less interest; less down preserves cash for moving, repairs, and an emergency fund.
Private mortgage insurance protects the lender, not you, and is usually required on conventional loans when your down payment is under 20%. It is added to your monthly payment and can often be removed once you build enough equity. Putting 20% or more down generally avoids it from the start.
No. The down payment is separate from closing costs, which often run roughly 2% to 5% of the loan and cover lender fees, title, appraisal, and prepaids. Budget for both when planning your total cash to close.
A larger down payment shrinks the loan amount you finance, so there is less principal to repay and less interest over the life of the loan. Reaching 20% also typically removes PMI, which lowers the monthly cost further.
The down payment and loan math are exact, and the monthly figure is exact for a fixed-rate loan, but your real quote depends on lender fees, taxes, insurance, and any PMI. Use it as a planning estimate, not a guarantee.
Disclaimer: This tool provides an estimate for general informational purposes only and is not financial advice. The monthly figure covers principal and interest only and excludes property taxes, homeowners insurance, HOA dues, and PMI. Down payment requirements, rates, and fees vary by lender and loan program. Consult a licensed mortgage professional before making decisions.
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