Enter the cross-sectional area (cm^2), the resistance (ohms), and the resistivity into the Wire Distance Calculator. The calculator will evaluate and display the Wire Distance. 

Wire Distance Formula

The following formula is used to calculate the Wire Distance. 

Dwire = A * R / p 

  • Where Dwire is the Wire Distance (cm)
  • A is the cross-sectional area (cm^2) 
  • R is the resistance (ohms) 
  • p is the resistivity 

How to Calculate Wire Distance?

The following example problems outline how to calculate Wire Distance.

Example Problem #1

  1. First, determine the cross-sectional area (cm^2).
    • The cross-sectional area (cm^2) is calculated to be : 2.5.
  2. Next, determine the resistance (ohms). 
    • The resistance (ohms) is measured to be: 6.
  3. Next, determine the resistivity. 
    • The resistivity is found to be: 4.
  4. Finally, calculate the Wire Distance using the formula above: 

Dwire = A * R / p 

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

Dwire = 2.5 * 6 / 4  = 3.75 (cm)


Example Problem #2

The variables needed for this problem are provided below:

cross-sectional area (cm^2) = 3.5

resistance (ohms) = 6

resistivity = 8

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

Dwire = A * R / p  = (cm)