Refinance Calculator
Disclaimer: This is an estimate based on simplified assumptions. Consult a lender for precise loan terms and refinancing costs.
Our Refinance Calculator compares your current mortgage with a potential refinanced loan to estimate payment changes and savings. Enter your loan details to evaluate refinancing.
How to Use the Refinance Calculator
- Enter your current loan balance (e.g., $200,000).
- Input the current interest rate (e.g., 5%).
- Specify the current loan term (e.g., 25 years remaining).
- Enter the new interest rate (e.g., 3.5%) for the refinanced loan.
- Input the new loan term (e.g., 30 years).
- Specify the closing costs (e.g., $5,000) for refinancing.
- Click Calculate Refinance to view payment changes, savings, and a cost comparison chart.
The Logic Behind It
The calculator uses the loan amortization formula to compute monthly payments for both loans:
M = P × (r × (1 + r)^n) / ((1 + r)^n - 1)
Where:
- M = Monthly Payment
- P = Loan Balance
- r = Monthly Interest Rate (Annual Rate / 12)
- n = Number of Payments (Term × 12)
Total Interest = (Monthly Payment × Number of Payments) - Loan Balance.
Interest Savings = Current Loan Total Interest - New Loan Total Interest.
Breakeven Period = Closing Costs / Monthly Payment Savings (in months).
The bar chart compares total costs (principal + interest) for both loans, including closing costs for the new loan.
Benefits of Using the Refinance Calculator
- Clarity: Understand payment changes from refinancing.
- Planning: Evaluate potential interest savings.
- Insight: Determine the breakeven period for closing costs.
- Visualization: Compare total costs with a chart.
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