Enter the total phase current (amps) into the calculator to determine the Line Current.

## Line Current Formula

The following formula is used to calculate the Line Current.

IL = IP * SQRT(3)
• Where IL is the Line Current (amps)
• IP is the total phase current (amps)

To calculate line current, multiply the total phase current by the square root of 3.

## How to Calculate Line Current?

The following two example problems outline how to calculate the Line Current.

Example Problem #1:

1. First, determine the total phase current (amps). In this example, the total phase current (amps) is measured to be 56.
2. Finally, calculate the Line Current using the formula above:

IL = IP * SQRT(3)

Inserting the values from above and solving the equation with the imputed values gives:

IL = 56 * SQRT(3) = 96.99 (amps)

Example Problem #2:

Using the same process as example problem 1, we first define the variables outlined by the formula. In this case, the values are:

total phase current (amps) = 82

Entering these values into the formula above gives :

IL = 82 * SQRT(3) = 142.028 (amps)