Enter the daily purchase rate (units) into the Calculator. The calculator will evaluate the Annual Purchase Rate. 

Annual Purchase Rate Formula

APR = DPR * 365


  • APR is the Annual Purchase Rate (units/year)
  • DPR is the daily purchase rate (units)

To calculate Annual Purchase Rate, multiply the daily purchase rate by 365.

How to Calculate Annual Purchase Rate?

The following steps outline how to calculate the Annual Purchase Rate.

  1. First, determine the daily purchase rate (units). 
  2. Next, gather the formula from above = APR = DPR * 365.
  3. Finally, calculate the Annual Purchase Rate.
  4. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

daily purchase rate (units) = 30