Auto Loan Per Diem Calculator

Are you in the process of purchasing a car and trying to estimate the cost of financing? One aspect of financing that can be confusing is the per diem interest calculation. But no need to worry, we have got you covered with our Auto Loan Per Diem Calculator! This handy tool allows you to calculate the daily interest cost on your auto loan, providing you with a better understanding of your total cost of financing. Keep reading to learn how our calculator can help you make informed decisions about your auto loan.

Auto Loan Per Diem Calculator

Calculate the per diem interest on your auto loan

Auto Loan Per Diem Calculator Results
Loan Amount0
Annual Interest Rate0
Loan Term0
Loan Start Date0
Loan End Date0
Per Diem Interest0

If youre exploring different loan options, our auto loan per diem calculator can be a valuable tool. It complements the personal loan calculator, allowing you to assess auto loan costs and personal loan options.

How to Use the Auto Loan Per Diem Calculator

The Auto Loan Per Diem Calculator is a powerful tool designed to help individuals calculate the per diem interest on their auto loans. It provides users with a convenient way to estimate the daily interest charges incurred based on the loan amount, annual interest rate, loan term, and specific start and end dates. Understanding the per diem interest allows borrowers to better manage their loan repayments and make informed financial decisions.

Instructions for Utilizing the Calculator

To make the most of the Auto Loan Per Diem Calculator, follow these steps:

  1. Loan Amount: Enter the total loan amount in dollars. This represents the initial amount borrowed from the lender.
  2. Annual Interest Rate: Input the annual interest rate associated with the auto loan. The interest rate is expressed as a percentage.
  3. Loan Term: Specify the duration of the loan in months. This refers to the total number of months over which the loan is repaid.
  4. Loan Start Date: Enter the date on which the auto loan repayment begins. This is typically the date when the loan agreement is signed.
  5. Loan End Date: Provide the date on which the auto loan repayment ends. This date corresponds to the completion of the loan term.

Once you have filled in all the required fields, click the Calculate Per Diem Interest button.

Output and Interpretation

The Auto Loan Per Diem Calculator generates the following output fields:

  1. Loan Amount: Displays the total loan amount entered by the user.
  2. Annual Interest Rate: Indicates the annual interest rate specified by the user. This percentage reflects the interest charged by the lender over the course of a year.
  3. Loan Term: Shows the loan term in months, representing the agreed-upon duration for repaying the loan.
  4. Loan Start Date: Displays the loan start date provided by the user.
  5. Loan End Date: Indicates the loan end date entered by the user.
  6. Per Diem Interest: Represents the calculated per diem interest amount. This value signifies the daily interest charges accrued on the auto loan during the specified period.

Auto Loan Per Diem Calculator Formula

The per diem interest calculation formula used by the Auto Loan Per Diem Calculator is as follows:

Per Diem Interest = (Loan Amount × Daily Interest Rate × Days)


  • Loan Amount: The total amount of the auto loan.
  • Daily Interest Rate: The annual interest rate divided by 365 (number of days in a year) to obtain the daily interest rate.
  • Days: The number of days between the loan start date and the loan end date.

Illustrative Example

Let's consider an example to illustrate the usage of the Auto Loan Per Diem Calculator. Suppose an individual has taken out an auto loan of $20,000 with an annual interest rate of 6.5%. The loan term is set for 60 months, and the loan start date is January 1, 2023. If the loan end date is December 31, 2025, the calculator will provide the following results:

  • Loan Amount: $20,000
  • Annual Interest Rate: 6.5%
  • Loan Term: 60 months
  • Loan Start Date: January 1, 2023
  • Loan End Date: December 31, 2025
  • Per Diem Interest: $3.01

Illustrative Table Example

Loan Amount

Annual Interest Rate

Loan Term

Loan Start Date

Loan End Date

Per Diem Interest

$20,0006.5%60 monthsJanuary 1, 2023December 31, 2025$3.01

The Auto Loan Per Diem Calculator simplifies the process of calculating per diem interest on auto loans. By entering the loan amount, annual interest rate, loan term, loan start date, and loan end date, borrowers can estimate their daily interest charges accurately. Understanding the per diem interest enables individuals to plan their loan repayments effectively, manage their finances, and make informed decisions. By utilizing the Auto Loan Per Diem Calculator, borrowers can gain valuable insights into their loan obligations and stay on top of their auto loan payments.

About the Author

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Aariz Ahmed

Aariz Ahmed is a Physiologist with a passion for understanding how the human body functions. With a strong background in biology and a focus on human physiology, he is dedicated to promoting health and wellness through scientific research. Aariz has a keen interest in exploring the intersection of health and technology, and how data can be used to improve our understanding of the human body. His expertise in physiology has contributed to the development of numerous health and wellness programs, and he is a recognized expert in his field.