Enter the ground run (ft) and the distance to reach 50 vertical feet (ft) into the Takeoff Distance Calculator. The calculator will evaluate and display the Takeoff Distance. 

Takeoff Distance Formula

The following formula is used to calculate the Takeoff Distance. 

TD = GR + D50

  • Where TD is the Takeoff Distance (FT)
  • gr is the ground run (ft) 
  • D50 is the distance to reach 50 vertical feet (ft) 

How to Calculate Takeoff Distance?

The following example problems outline how to calculate Takeoff Distance.

Example Problem #1:

  1. First, determine the ground run (ft). 
    • The ground run (ft) is given as: 1000.
  2. Next, determine the distance to reach 50 vertical feet (ft). 
    • The distance to reach 50 vertical feet (ft) is provided as: 70.
  3. Finally, calculate the Takeoff Distance using the equation above: 

TD = GR + D50

The values given above are inserted into the equation below and the solution is calculated:

TD = 1000 + 70 = 1,070 (FT)


Example Problem #2: 

For this problem, the variables needed are provided below:

ground run (ft) = 500

distance to reach 50 vertical feet (ft) = 80

This example problem is a test of your knowledge on the subject. Use the calculator above to check your answer. 

TD = GR + D50 = ?