Mortgage Calculator: Monthly Principal and Interest Payment
Use this when you already know the loan principal.
Advanced options
When provided, loan amount is calculated automatically.
Can be entered as amount or as percent of home price.
Result
Calculated loan amount
$5,000,000.00
Monthly payment
$49,918.99
Total paid
$11,980,558.64
Total interest
$6,980,558.64
This result is informational only and is not professional advice.
Balance trend
Payment schedule
Long schedules are grouped for easier scanning
| Period | Payment | Interest | Principal | Balance |
|---|---|---|---|---|
| 1-12 | $599,027.93 | $521,331.42 | $77,696.51 | $4,922,303.49 |
| 13-24 | $599,027.93 | $512,769.00 | $86,258.93 | $4,836,044.56 |
| 25-36 | $599,027.93 | $503,262.97 | $95,764.97 | $4,740,279.59 |
| 37-48 | $599,027.93 | $492,709.34 | $106,318.60 | $4,633,961.00 |
| 49-60 | $599,027.93 | $480,992.66 | $118,035.27 | $4,515,925.72 |
| 61-72 | $599,027.93 | $467,984.77 | $131,043.17 | $4,384,882.56 |
| 73-84 | $599,027.93 | $453,543.36 | $145,484.57 | $4,239,397.98 |
| 85-96 | $599,027.93 | $437,510.46 | $161,517.48 | $4,077,880.51 |
| 97-108 | $599,027.93 | $419,710.67 | $179,317.26 | $3,898,563.25 |
| 109-120 | $599,027.93 | $399,949.29 | $199,078.64 | $3,699,484.61 |
| 121-132 | $599,027.93 | $378,010.14 | $221,017.79 | $3,478,466.81 |
| 133-144 | $599,027.93 | $353,653.21 | $245,374.72 | $3,233,092.10 |
| 145-156 | $599,027.93 | $326,612.07 | $272,415.86 | $2,960,676.24 |
| 157-168 | $599,027.93 | $296,590.91 | $302,437.03 | $2,658,239.21 |
| 169-180 | $599,027.93 | $263,261.30 | $335,766.63 | $2,322,472.58 |
| 181-192 | $599,027.93 | $226,258.66 | $372,769.27 | $1,949,703.31 |
| 193-204 | $599,027.93 | $185,178.20 | $413,849.73 | $1,535,853.58 |
| 205-216 | $599,027.93 | $139,570.53 | $459,457.40 | $1,076,396.19 |
| 217-228 | $599,027.93 | $88,936.74 | $510,091.19 | $566,305.00 |
| 229-240 | $599,027.93 | $32,722.93 | $566,305.00 | $0.00 |
Related tools
Mortgage Payoff Calculator: Extra Payment Impact
See how extra monthly mortgage payments can shorten payoff time and reduce total interest in a fixed-rate scenario.
Loan Payment Calculator (PMT)
Estimate monthly loan payment, total repaid, and total interest from amount, rate, and term with a fixed-payment PMT model.
Loan Calculator: Monthly Payment and Total Cost
Calculate monthly loan payment, total interest, and total repayment from amount, APR, and term for quick offer comparison.
Useful links
Quickly estimate fixed-rate mortgage principal-and-interest payments.
Estimate monthly mortgage payment, total interest, and total repaid for fixed-rate principal-and-interest scenarios.
Use this calculator when you need a quick, practical estimate from mortgage amount, fixed annual rate, and mortgage term.
You get estimated monthly mortgage payment, total interest over the mortgage term, and total principal plus interest repaid.
Primary assumption: The model is principal-and-interest only.
What this calculator shows
- Estimated monthly mortgage payment
- Total interest over the mortgage term
- Total principal plus interest repaid
What to keep in mind
- The model is principal-and-interest only.
- Property tax, insurance, HOA, and PMI are excluded unless added manually outside this tool.
- A fixed rate is assumed for the whole term.
FAQs
What is included in this estimate?
The calculator focuses on estimated monthly mortgage payment, total interest over the mortgage term, and total principal plus interest repaid.
Can I compare multiple scenarios?
Yes. Change one input at a time and compare estimated monthly mortgage payment and total interest over the mortgage term.
Can I treat this as a final legal or financial quote?
No. The model uses assumptions such as: A fixed rate is assumed for the whole term.
Does this include tax and insurance escrow?
No. This calculator models principal and interest only.
Worked example
Example: $300,000 at 6% for 30 years
Input: Amount: $300,000; Rate: 6%; Term: 360 months
Output: Monthly payment: about $1,798.65; Total interest: about $347,515
Note: Use this for P&I baseline before adding tax/insurance from your local estimate.