car-loan-calculator-js

Calculate monthly car payments, amortization schedules, and loan comparisons.

Live Demo → Car Payment Calculator

Features

• Monthly payment calculation (standard amortization formula)
• • Full amortization schedule generation
  • • Reverse calculation (budget → max vehicle price)
    • • Complete loan details with sales tax, down payment, and trade-in

      • • Zero dependencies

        • Install

        • npm install car-loan-calculator-js

          Usage

          const { calculateLoanDetails, calculateAmortizationSchedule } = require('car-loan-calculator-js');
          
          // Calculate a $35,000 car with $5,000 down, 6.5% APR, 60 months, 7% tax
          const loan = calculateLoanDetails(35000, 5000, 0, 6.5, 60, 7);
          console.log(loan.monthlyPayment); // 620.87
          console.log(loan.totalInterest);  // 5102.20
          
          // Get full amortization schedule
          const schedule = calculateAmortizationSchedule(30000, 6.5, 60);

          API

          • calculateMonthlyPayment(principal, annualRate, termMonths)
          • • calculateTotalInterest(principal, monthlyPayment, termMonths)
            • • calculateAmortizationSchedule(principal, annualRate, termMonths)
              • • calculateMaxVehiclePrice(monthlyBudget, annualRate, termMonths, downPayment)

                • • calculateLoanDetails(vehiclePrice, downPayment, tradeIn, annualRate, termMonths, salesTaxRate)

                  • Used By

                  • • Car Payment Calculator — Free online car payment calculator with credit-based rates, tax lookup, and amortization charts.

                    • License

                    • MIT