Enter the total flame distance (ft) and the total time (hrs) into the Calculator. The calculator will evaluate the Chains Per Hour. 

Chains Per Hour Formula

CPH = FD/66/T


  • CPH is the Chains Per Hour (chains/hour)
  • is the total flame distance (ft)
  • is the total time (hrs)

To calculate Chains Per Hour, divide the flame distance in feet by 66, then divide by the total time.

How to Calculate Chains Per Hour?

The following steps outline how to calculate the Chains Per Hour.

  1. First, determine the total flame distance (ft). 
  2. Next, determine the total time (hrs). 
  3. Next, gather the formula from above = CPH = FD/66/T.
  4. Finally, calculate the Chains Per Hour.
  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.

total flame distance (ft) =

total time (hrs) =