// pre-computed reference
25-year mortgage at 5.5%: total interest by loan amount
Exact principal-and-interest figures for a fixed-rate 25-year mortgage at
5.5%, computed with the standard amortization formula. For your own numbers, use the
interactive calculator.
| Loan amount | Monthly P&I | Total interest |
Total paid | Interest % of loan |
|---|
| $100,000 | $614 | $84,225 | $184,225 | 84% |
| $200,000 | $1,228 | $168,454 | $368,454 | 84% |
| $300,000 | $1,842 | $252,680 | $552,680 | 84% |
| $400,000 | $2,456 | $336,905 | $736,905 | 84% |
| $500,000 | $3,070 | $421,131 | $921,131 | 84% |
At 5.5% over 25 years, every dollar borrowed costs about
84 cents in interest. A 25-year term trims meaningful interest off the standard 30 without a dramatic payment jump — common in refinances that avoid resetting to a full 30.
See the term comparison or the
extra payment calculator to shrink these numbers.
25-year at other rates: 4.0% · 4.5% · 5.0% · 6.0% · 6.5% · 7.0% · 7.5% · 8.0%
5.5% at other terms: 10-year · 15-year · 20-year · 30-year
Frequently asked questions
How much interest on a $400,000 mortgage at 5.5% for 25 years?
Total interest is about $336,905, with a monthly principal-and-interest payment of $2,456. That's 84% of the amount borrowed, before taxes and insurance.
Is 5.5% a good rate for a 25-year mortgage?
Rates move with the market and your credit profile; compare current quotes from several lenders. Whatever your rate, the table above shows what it costs in total interest.
How can I pay less than $336,905 in interest?
Pay extra toward principal, choose a shorter term, or refinance if rates drop. Use the extra payment calculator to see your exact savings.
How is the 25-year payment at 5.5% calculated?
With the standard amortization formula — P·r(1+r)ⁿ/((1+r)ⁿ−1) — over 300 monthly payments, computed to the cent. The full formula and rounding rules are on our methodology page.