// pre-computed reference
10-year mortgage at 4.0%: total interest by loan amount
Exact principal-and-interest figures for a fixed-rate 10-year mortgage at
4.0%, 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 | $1,012 | $21,494 | $121,494 | 21% |
| $200,000 | $2,025 | $42,989 | $242,989 | 21% |
| $300,000 | $3,037 | $64,483 | $364,483 | 21% |
| $400,000 | $4,050 | $85,977 | $485,977 | 21% |
| $500,000 | $5,062 | $107,471 | $607,471 | 21% |
At 4.0% over 10 years, every dollar borrowed costs about
21 cents in interest. A 10-year term is the aggressive payer's choice: the principal-over-interest crossover arrives almost immediately, which is why its totals are a fraction of longer terms.
See the term comparison or the
extra payment calculator to shrink these numbers.
10-year at other rates: 4.5% · 5.0% · 5.5% · 6.0% · 6.5% · 7.0% · 7.5% · 8.0%
4.0% at other terms: 15-year · 20-year · 25-year · 30-year
Frequently asked questions
How much interest on a $400,000 mortgage at 4.0% for 10 years?
Total interest is about $85,977, with a monthly principal-and-interest payment of $4,050. That's 21% of the amount borrowed, before taxes and insurance.
Is 4.0% a good rate for a 10-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 $85,977 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 10-year payment at 4.0% calculated?
With the standard amortization formula — P·r(1+r)ⁿ/((1+r)ⁿ−1) — over 120 monthly payments, computed to the cent. The full formula and rounding rules are on our methodology page.