Voltage Converter
Convert voltage units with the factor behind each answer. The unit changes the number, not the voltage.
1 kV = 1,000 V
Common conversions
- 1 V = 0.001 kV
- 1 kV = 1,000 V
- 1 mV = 0.001 V
- 1 V = 1,000 mV
- 1 MV = 1,000 kV
AC voltage is normally RMS
Mains voltages such as 230 V or 11 kV are RMS values. The peak of a 230 V sine wave is about 325 V. A unit conversion keeps the same kind of value, so convert RMS to RMS.
Line-to-line and line-to-neutral
A three-phase system has two voltages. Line-to-line is √3 times line-to-neutral, for example 400 V and 230 V. Converting units does not change which one you have, so state which one you mean.
Unit factors
Every unit in terms of the base unit shown. To convert, multiply by the factor of the unit you have and divide by the factor of the unit you want.
| Unit | Equals | What it is |
|---|---|---|
| µV | 1 × 10⁻⁶ V | Microvolt, a millionth of a volt. |
| mV | 0.001 V | Millivolt, a thousandth of a volt. Sensor and signal level. |
| V | 1 V | Volt, the SI unit of electric potential. |
| kV | 1,000 V | Kilovolt. Medium and high voltage systems. |
| MV | 1,000,000 V | Megavolt. |
| GV | 1,000,000,000 V | Gigavolt, a billion volts. Lightning and particle physics. |
Conversion pages
Frequently asked questions
What is the formula to convert kV to V?
V = kV × 1,000. For example, 11 kV is 11,000 V.
How do I convert V back to kV?
kV = V × 0.001. The Swap button above reverses the direction for any pair of units.
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