Daily Interest Calculator

Enter a loan balance or principle, the total length of the loan, and the annual interest rate (%) to calculator the daily interest owed on the loan.

Daily Interest Formula

The following formula is used by the calculator above to determine the daily interest of a loan or mortgage.

DI = LB X AIR / 365

  • Where DI is the daily interest ($)
  • LB is the loan balance ($)
  • AIR is the annual interest rate
  • 365 is the number of days in a year

This formula calculates the total interest your would pay each day on a loan throughout it’s lifetime. This will not equal your actual payments since that is most often paid in terms of months.

daily interest calculator
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