Debt
Loan Calculator
Calculate monthly payments, total interest, and see your full amortization breakdown.
Parameters
Loan type
$
%
Results
Monthly payment
$1,896.20
Over 30 years
Total interest
$382,633.47
Total cost
$682,633.47
Loan amount
$300,000.00
Interest ratio
127.5%
Cumulative principal vs interest
Principal
Interest
Understanding loan costs
Amortization
Each payment covers both interest and principal. Early payments are mostly interest — principal paydown accelerates over time.
Rate impact
A 1% rate difference on a $300k mortgage changes your total interest by tens of thousands of dollars over 30 years.
Extra payments
Making even one extra payment per year can cut years off your loan term and save significant interest.
Refinancing
If rates drop significantly, refinancing can lower your payment and total cost — but factor in closing costs first.
For educational purposes only. Does not include PMI, property taxes, insurance, or closing costs. Not financial advice.