Loan Calculator
Standard installment loan calculator with monthly payment, total interest, and total cost breakdown.
How It Works & Methodology
An installment loan is a fixed-term loan repaid in regular monthly payments over a predetermined period. This calculator uses standard annuity amortization with fixed monthly payments covering both principal and interest.
Key Assumptions & Scope:
- Assumes fixed interest rate compounded monthly with payments made at month-end.
- Excludes processing fees, prepayment penalties, late fees, and insurance costs.
Frequently Asked Questions
How is monthly loan interest computed?
Each month, interest is calculated by multiplying the outstanding remaining principal by the monthly interest rate (annual interest rate divided by 12).
Can I calculate a 0% interest loan?
Yes. Under zero percent interest financing, the monthly payment is simply the total principal divided by the number of repayment months, with zero total interest.
Does this calculation apply to auto or personal loans?
Yes. Most auto loans, personal bank loans, and retail installment contracts follow standard fixed-rate monthly installment amortization.