What Is the Down Payment Calculator?
A down payment calculator computes upfront equity contribution and mortgage financing implications for residential property purchases.
How Does the Down Payment Calculator Work?
Divides down payment cash by purchase price to find loan-to-value (LTV) percentage and models PMI triggers.
Down Payment Calculator Formula & Variables
The core mathematical equation utilized by this calculator is expressed as:
Down Payment % = (Down Payment ÷ Purchase Price) × 100; Financed Loan = Purchase Price - Down Payment
Calculates the home equity percentage and financed principal, determining PMI requirements if equity is below 20%.
How to Use the Down Payment Calculator
- Enter the target purchase price and your available down payment savings to view loan terms and PMI.
Step-by-Step Example Calculation
$40,000 Down on a $400,000 Home
Input Values:
homePrice:400000
downPaymentAmount:40000
Worked Steps: 10% down ($40k) finances $360,000 with estimated $150/month PMI until reaching 20% equity.
Understanding Your Result
Displays financed principal, down payment percentage, monthly PMI burden, and cash required to eliminate PMI.
Factors That Affect the Result
- Loan program (Conventional, FHA, VA), borrower credit score, property type, and local property transfer taxes.
When Should You Use This Calculator?
- Setting home buying savings milestones, comparing mortgage pre-approvals, and weighing 10% vs 20% down.
Assumptions & Limitations
- Estimated PMI assumes an average 0.5% annual rate on the initial loan balance.
Frequently Asked Questions
Calculation Accuracy & Reference Note
Standard residential mortgage financing formulas.