Enter the amount of deforestation (acres) and the total time (years) into the Calculator. The calculator will evaluate the Deforestation Rate. 

Deforestation Rate Formula



  • DEFR is the Deforestation Rate (acres/year)
  • DEF is the amount of deforestation (acres)
  • T is the total time (years)

To calculate the Deforestation Rate, divide the amount of deforestation by the total time period.

How to Calculate Deforestation Rate?

The following steps outline how to calculate the Deforestation Rate.

  1. First, determine the amount of deforestation (acres). 
  2. Next, determine the total time (years). 
  3. Next, gather the formula from above = DEFR = DEF / T.
  4. Finally, calculate the Deforestation Rate.
  5. 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.

amount of deforestation (acres) = 50000

total time (years) = 2