Loan Calculator

Calculate Loan Payments

What is a Loan Calculator?

A loan calculator helps you determine the monthly payment, total payment, and total interest for any type of loan. It uses the principal amount, interest rate, and loan term to calculate what you'll pay over the life of the loan.

Whether you're considering a personal loan, auto loan, or any other installment loan, this calculator helps you understand the true cost of borrowing and plan your budget accordingly.

How to Calculate Loan Payments

Loan payments are calculated using an amortization formula that considers the principal, interest rate, and loan term:

  1. Convert annual rate to monthly: Divide the annual rate by 12 to get the monthly rate
  2. Calculate total payments: Multiply the number of years by 12 for monthly payments
  3. Apply the formula: Use the loan payment formula to find the monthly payment
  4. Calculate totals: Multiply monthly payment by total payments for total cost

Formula

M = P × [r(1+r)^n] / [(1+r)^n - 1]

Where: M = Monthly payment, P = Principal (loan amount), r = Monthly interest rate (annual rate / 12 / 100), n = Total number of payments (years × 12)

Example

Personal Loan Example

Problem: You take out a $20,000 personal loan at 6% annual interest for 5 years. What is your monthly payment?

Solution:

  1. Principal: $20,000, Annual Rate: 6%, Term: 5 years
  2. Monthly rate: 6% / 12 = 0.5% = 0.005
  3. Total payments: 5 × 12 = 60
  4. Monthly Payment: $386.66
  5. Total Payment: $386.66 × 60 = $23,199.60
  6. Total Interest: $23,199.60 - $20,000 = $3,199.60

Frequently Asked Questions

What factors affect my loan payment?

Three main factors determine your loan payment: the principal amount (how much you borrow), the interest rate (the cost of borrowing), and the loan term (how long you have to repay). A larger loan or higher rate means higher payments, while a longer term reduces monthly payments but increases total interest.

Should I choose a shorter or longer loan term?

Shorter terms mean higher monthly payments but less total interest paid. Longer terms mean lower monthly payments but more interest over time. Choose based on your budget and financial goals - shorter terms save money, longer terms provide flexibility.

What is loan amortization?

Amortization is the process of paying off a loan through regular payments over time. Each payment covers both principal and interest. Early payments go mostly toward interest, while later payments go mostly toward principal.