Monthly principal & interest by loan amount
These are principal and interest only, at 8.0% over 30 years. Property taxes, insurance and any HOA dues sit on top.
| Loan amount | Monthly P&I | Total interest | Total paid |
|---|---|---|---|
| $200,000 | $1,468 | $328,310 | $528,310 |
| $350,000 | $2,568 | $574,543 | $924,543 |
| $500,000 | $3,669 | $820,776 | $1,320,776 |
| $750,000 | $5,503 | $1,231,164 | $1,981,164 |
| $1,000,000 | $7,338 | $1,641,552 | $2,641,552 |
Illustrative figures using the standard fixed-rate amortization formula; your lender's closing costs and any points are not included.
Amortization schedule ($350,000 at 8.0%)
Each year's split between interest and principal, and the remaining balance. Early years are interest-heavy; the principal share grows every year.
| Year | Interest paid | Principal paid | Balance |
|---|---|---|---|
| Year 1 | $27,894 | $2,924 | $347,076 |
| Year 2 | $27,652 | $3,166 | $343,910 |
| Year 3 | $27,389 | $3,429 | $340,481 |
| Year 4 | $27,104 | $3,714 | $336,767 |
| Year 5 | $26,796 | $4,022 | $332,744 |
| Year 6 | $26,462 | $4,356 | $328,389 |
| Year 7 | $26,101 | $4,718 | $323,671 |
| Year 8 | $25,709 | $5,109 | $318,562 |
| Year 9 | $25,285 | $5,533 | $313,029 |
| Year 10 | $24,826 | $5,992 | $307,036 |
| Year 11 | $24,328 | $6,490 | $300,547 |
| Year 12 | $23,790 | $7,028 | $293,518 |
| Year 13 | $23,206 | $7,612 | $285,907 |
| Year 14 | $22,575 | $8,243 | $277,663 |
| Year 15 | $21,890 | $8,928 | $268,735 |
| Year 16 | $21,149 | $9,669 | $259,067 |
| Year 17 | $20,347 | $10,471 | $248,596 |
| Year 18 | $19,478 | $11,340 | $237,255 |
| Year 19 | $18,537 | $12,282 | $224,974 |
| Year 20 | $17,517 | $13,301 | $211,673 |
| Year 21 | $16,413 | $14,405 | $197,268 |
| Year 22 | $15,218 | $15,600 | $181,668 |
| Year 23 | $13,923 | $16,895 | $164,772 |
| Year 24 | $12,521 | $18,298 | $146,475 |
| Year 25 | $11,002 | $19,816 | $126,658 |
| Year 26 | $9,357 | $21,461 | $105,197 |
| Year 27 | $7,576 | $23,242 | $81,955 |
| Year 28 | $5,647 | $25,171 | $56,784 |
| Year 29 | $3,558 | $27,261 | $29,523 |
| Year 30 | $1,295 | $29,523 | $0 |
The formula behind the payment
P&I = loan × r ÷ (1 − (1 + r)^−n)
r = 8.0% ÷ 12, n = 30 × 12 = 360 payments
Add taxes, insurance and PMI on the full mortgage calculator, or see what the loan does to a rental's return with the cash-on-cash calculator.
Frequently asked questions
4 answers, no funnel.
What is the monthly payment on a 30-year mortgage at 8.0%?
On a $350,000 loan, principal and interest is $2,568 a month. Scale it linearly for other loan amounts: $1,834 on $250k, or $3,669 on $500k, all at 8.0% over 30 years.
How much interest do you pay on a 30-year loan at 8.0%?
A $350,000 loan at 8.0% for 30 years pays about $574,543 in total interest. A shorter term cuts that sharply, because less time at interest is the whole point.
Is 8.0% a good mortgage rate?
A rate is only good relative to what you can get today and what the payment does to your budget. At 8.0%, every $100,000 borrowed costs about $734 a month; compare that against competing quotes and a shorter term before you commit.
Why does a 30-year term change the total cost?
A longer term lowers the monthly payment by spreading principal over more months, but it keeps the balance outstanding longer, so total interest rises. This page's amortization table shows how much of each year goes to interest versus principal.