$300,000 Mortgage Calculator
Monthly payment, total interest, and amortization at multiple rates — 2025.
$300,000 Mortgage — Monthly Payment by Rate
| APR | 30-yr Monthly | 30-yr Total Interest | 15-yr Monthly | 15-yr Total Interest |
|---|---|---|---|---|
| 6.5% | $1,896.20 | $382,633 | $2,613.32 | $170,398 |
| 7% | $1,995.91 | $418,527 | $2,696.48 | $185,367 |
| 7.5% | $2,097.64 | $455,152 | $2,781.04 | $200,587 |
Full Loan Calculator
Monthly Payment
$1,995.91
Total interest: $418,527
$718,527 total over 30 years
Principal vs Interest
Loan Amount | $300,000 |
APR | 7.0% |
Term | 30 years (360 months) |
Monthly Payment | $1,995.91 |
Total Principal | $300,000 |
Total Interest 58.25% of total | $418,527 |
Total Cost | $718,527 |
Frequently Asked Questions
What is the monthly payment on a $300,000 mortgage?
At 7% APR over 30 years, a $300,000 mortgage costs $1,995.91/month. At 6.5%, it's $1,896.20/month. These figures are principal + interest only; property taxes, insurance, and PMI are not included.
How much interest will I pay on a $300,000 mortgage?
Over 30 years at 7% APR, you'd pay $418,527 in total interest on a $300,000 loan — nearly 140% of the original loan. A 15-year term at the same rate costs $185,367 in interest.
Should I choose a 15-year or 30-year mortgage?
A 15-year mortgage saves significant interest but requires higher monthly payments. On a $300,000 loan at 7%, the 15-year payment is $2,696.48/month vs. $1,995.91/month for 30 years — but total interest savings are $233,159.