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How do I calculate the loan interest for a car?

How do I calculate the monthly loan interest for a car? As a mother of five children, I need to stay on top of my budgeting every month to support my children’s after-school activities, pay for my car loan, etc. I need to consider my monthly interest amount when I budget money every month.

avatar
Phoebe Mah · Updated on
Reviewed by Shannon Martin, Licensed Insurance Agent.
Wow, it sounds like you are a very busy mom! To calculate the
loan interest
for a car, follow these steps:
  • Convert your interest rate into a decimal and divide it by 365.
  • Take the answer and multiply it by your total loan value.
  • Multiply the answer by 30 (to represent how many days between payments).
Whatever your answer is to this final equation is how much interest you will pay each month.
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