Principal and interest
Principal is the amount borrowed. Interest is the cost charged on the outstanding balance.
Term and payment
For the same principal and rate, a longer term generally reduces the scheduled payment but can increase total interest.
APR versus interest rate
APR can include certain finance costs and its official calculation can vary by lending rules. Use the APR tool here as an estimate, not a lender disclosure.
Related working tools
Loan Calculator
Estimate a fixed monthly loan payment, total paid, and total interest.
Open tool → Real EstateMortgage Calculator
Estimate monthly mortgage principal and interest plus optional property tax, insurance, and monthly service fees.
Open tool → MoneyAPR Calculator
Estimate a simple annual percentage rate from amount financed, total finance cost, and term.
Open tool → MoneyDebt Payoff Calculator
Estimate payoff time and interest for a debt with a fixed monthly payment.
Open tool →