Input Fields for house payment calculator 2025
Mortgage Amount: The total loan amount.
Annual interest rate:
Length of loan term: years in which the loan persists.
Calculation:
The script calculates the monthly payment using the formula for a fixed-rate mortgage:
Where:
PP = loan amount
rr = annual rate divided by 12—monthly interest rate.
nn = total payments (twelve times loan timeframe)
Output: Below the calculator is a formatted box showing the result.
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