Enter the cable run/length (m), the current (amps), and the voltage drop per ampere meter (V/amp-m) into the Voltage Rise Calculator. The calculator will evaluate the Voltage Rise.

## Voltage Rise Formula

The following formula is used to calculate the Voltage Rise.

Vr = L*I*Vd / 1000

Variables:

- Vr is the Voltage Rise (volts)
- L is the cable run/length (m)
- I is the current (amps)
- Vd is the voltage drop per ampere meter (V/amp-m)

To calculate a voltage rise, multiply the cable length by the current, multiply this result by the voltage drop per ampere meter, then divide by 1000.

## How to Calculate Voltage Rise?

The following steps outline how to calculate the Voltage Rise.

- First, determine the cable run/length (m).
- Next, determine the current (amps).
- Next, determine the voltage drop per ampere meter (V/amp-m).
- Next, gather the formula from above = Vr = L*I*Vd / 1000.
- Finally, calculate the Voltage Rise.
- After inserting the variables and calculating the result, check your answer with the calculator above.

**Example Problem:**

Use the following variables as an example problem to test your knowledge.

cable run/length (m) = 100

current (amps) = 30

voltage drop per ampere meter (V/amp-m) = 250

Vr = L*I*Vd / 1000 =** ** ?