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An archive of data science, data analytics, data engineering, machine learning, and artificial intelligence writing from the former Towards Data Science Medium publication.

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The Cost of Financing a Car (Car Loans)

7 min readDec 7, 2018

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This tutorial gets into more than how the length of a loan affects monthly payments.

This tutorial will include:

  • How a Monthly Payment (Equated Monthly Installment) is Calculated.
  • How Interest Rates/APR Affect Monthly Payments.
  • How the Length of a Loan Affects Total Interest Paid

As always, the code used in this tutorial is located on my GitHub. With that, let’s get started!

How a Monthly Payment (Equated Monthly Installment) is Calculated

Your monthly payment, also called your Equated Monthly Installment (EMI) is defined by Investopedia as a fixed payment amount made by a borrower to a lender at a specified date each calendar month. Equated monthly installments are used to pay off both interest and principal each month, so that over a specified number of years, the loan is paid off in full.

A monthly payment can be calculated using an EMI formula similar to the one below.

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TDS Archive
TDS Archive

Published in TDS Archive

An archive of data science, data analytics, data engineering, machine learning, and artificial intelligence writing from the former Towards Data Science Medium publication.