Loan Calculator
Works for auto loans, personal loans, or any fixed-rate installment loan — not just mortgages.
Loan details
Added to the loan amount, e.g. an origination or documentation fee.
How this is calculated
Same amortizing-loan formula used by banks and lenders: M = P × r × (1+r)ⁿ ÷ ((1+r)ⁿ − 1), where P is the amount financed, r is the monthly interest rate, and n is the number of monthly payments. Every payment is a mix of interest and principal — early payments skew toward interest, later ones skew toward principal.
The rate you enter should be the loan's actual APR if you have it — that already reflects most fees baked into the interest rate. Use the "upfront fees" field only for costs charged separately and rolled into the loan.
Lenders price loans using your credit profile, the lender's own margins, and sometimes the specific vehicle or item being financed — this calculator only computes the math once you already know the rate.