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How much would a $20,000 car loan cost each month?

I’m buying a car and will take a $20,000 loan to cover the difference, but I’m worried I won’t be able to make the monthly payments. How much will it cost per month?

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Liz Jenson · Updated on
Reviewed by Shannon Martin, Licensed Insurance Agent.
The monthly cost of a $20,000 car loan will depend on your repayment period and the APR
If you choose a repayment period of 48 months with a 5.06% APR (based on a good credit score), your monthly payments would be about $452 before sales tax.
However, increasing the loan term or having a different APR can greatly affect monthly payment amounts. For example, a 72-month loan term would reduce your monthly payment to $316.
There are loan payment calculators online that you can use, or you can use this formula:
Payment amount = P (r (1+r)^n) / ( (1+r)^n -1 )
In this case:
  • P = Initial principal or loan amount (in this example, $10,000)
  • r = Interest rate per period (in our example, that’s 7.5% divided by 12 months)
  • n = Total number of payments, or the term length of your loan
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