Enter the source voltage (volts), the number of primary windings, and the number of secondary windings into the calculator to determine the Transformer Voltage.

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## Transformer Voltage Formula

The following formula is used to calculate the Transformer Voltage.

Vt = Vs * (P/S)

- Where Vt is the Transformer Voltage (volts)
- Vs is the source voltage (volts)
- P is the number of primary windings
- S is the number of secondary windings

To calculate the transformer voltage, multiply the source voltage by the ratio of primary windings to secondary windings.

## How to Calculate Transformer Voltage?

The following example problems outline how to calculate the Transformer Voltage.

**Example Problem #1**

- First, determine the source voltage (volts). In this example, the source voltage (volts) is determined to be 60 .
- Next, determine the number of primary windings. For this problem, the number of primary windings is measured to be 10 .
- Next, determine the number of secondary windings. In this case, the number of secondary windings is found to be 5.
- Finally, calculate the Transformer Voltage using the formula above:

Vt = Vs * (P/S)

Inserting the values from above into the equation gives:

Vt = 60 * (10/5) = 120 (volts)

**Example Problem #2**

Using the same method as above, determine the variables required by the equation. For this example problem, these are provided as follows:

source voltage (volts) = 100

number of primary windings = 20

number of secondary windings = 2

Entering these given values into the calculator above yields:

Vt = 100 * (20/2) = 1000** **(volts)