Enter the total number of cells and the voltage per cell (volts/cell) into the calculator to determine the Solar Panel Voltage. 

Solar Panel Voltage Formula

The following formula is used to calculate the Solar Panel Voltage. 

Vsp = #C * Vpc


  • Where Vsp is the Solar Panel Voltage (volts)
  • #C is the total number of cells 
  • Vpc is the voltage per cell (volts/cell) 

How to Calculate Solar Panel Voltage?

The following two example problems outline the steps and information needed in order to calculate the Solar Panel Voltage.

Example Problem #1:

  1. First, determine the total number of cells. In this example, the total number of cells is measured to be 100.
  2. Next, determine the voltage per cell (volts/cell). For this problem, the voltage per cell (volts/cell) is calculated to be .45.
  3. Finally, calculate the Solar Panel Voltage using the formula above: 

Vsp = #C * Vpc

Inserting the values from above into the equation yields: 

Vsp = 100 * .45 = 45 (volts)

Example Problem #2: 

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

total number of cells = 50

voltage per cell (volts/cell) = .35

Entering these values into the formula or calculator above gives us:: 

Vsp =50 * .35 = 17.5 (volts)