Mortgage Calculator Formula Explained: Understanding Your Home Loan
This comprehensive guide explains the exact formula used by banks and lenders to calculate your monthly mortgage payment and provides a free, simple tool to calculate your payment and explore the amortization schedule.
Calculate Your Monthly Mortgage Payment (P&I)
Use the inputs below to calculate your required monthly payment, which covers the Principal and Interest (P&I) components of your mortgage.
Standard Monthly Payment: $1,520.06
Based on a loan of $300,000 at 4.5% interest over 30 years, the estimated monthly Principal and Interest payment is $1,520.06.
| Total Principal $300,000.00 |
Total Interest Paid $247,222.09 |
|---|---|
|
The total cost of the loan (Principal + Interest) is $547,222.09.
|
|
| Details | Calculated Value |
|---|---|
| Monthly P&I Payment | $1,520.06 |
| Total Payments (360 mos) | $547,222.09 |
| Effective Interest Rate (Monthly) | 0.375% |
| Total Interest to be Paid | $247,222.09 |