Auto Loan Daily Interest Calculator
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Reviewed by Calculator Editorial Team
Understand how daily interest accumulates on your auto loan with our free auto loan daily interest calculator. This tool helps you track how much interest you'll pay each day and how it affects your loan balance over time.
How to Use This Calculator
Using our auto loan daily interest calculator is simple:
- Enter your loan amount in the "Loan Amount" field.
- Input your annual interest rate in the "Annual Interest Rate" field.
- Select the term of your loan in the "Loan Term" dropdown.
- Click the "Calculate" button to see your daily interest.
The calculator will display your daily interest amount and show how it accumulates over time with a chart.
How Daily Interest Works
Daily interest calculations are based on your loan's annual percentage rate (APR) divided by 365 (or 366 for leap years). This gives you the daily interest rate, which is then applied to your loan balance each day.
For example, if your APR is 5%, the daily interest rate would be approximately 0.0137% (5% ÷ 365). This rate is applied to your loan balance each day, compounding the interest over time.
Note: Some loans may use a different compounding period (e.g., monthly). This calculator assumes daily compounding for the most accurate daily interest calculation.
Formula Used
The daily interest is calculated using the following formula:
Where:
- Loan Amount is the principal amount of your loan
- Annual Interest Rate is the APR expressed as a percentage
- 365 is the number of days in a non-leap year
Worked Example
Let's calculate the daily interest for a $20,000 loan with a 5% annual interest rate:
So, with this loan, you would pay approximately $2.74 in daily interest each day.
Frequently Asked Questions
How often is daily interest calculated?
Daily interest is typically calculated once per day, based on your loan's balance at the end of each day. Some loans may calculate interest more frequently, but this calculator uses daily compounding for simplicity.
Does daily interest compound?
Yes, daily interest compounds over time, meaning each day's interest is added to your loan balance and earns interest the next day. This calculator shows how this compounding affects your loan balance over time.
Is daily interest the same as simple interest?
No, daily interest is a form of compound interest calculated on a daily basis. Simple interest is calculated only on the original principal amount and does not compound over time.