Kilovolt is 1000 volt units.
Kilovolts to Millivolts Converter — kV to mV
Convert Kilovolt (kV) to Millivolt (mV) using the exact conversion factor (1 kilovolt = 1,000,000 millivolt). See the formula, worked examples, and conversion table.
Kilovolts to Millivolts converter
Converter
Electricity Converter
Convert electrical units by family and calculate voltage, current, resistance, power, and energy with context values.
Context values
Some unit families need one extra value for a physically accurate result.
Millivolt is 0.001 volt units.
Result = input x 1000 / 0.001.
Electrical units in the same family convert directly.
Reserved above the conversion cards and below the converter.
About Converting Kilovolts to Millivolts
Kilovolt and Millivolt both belong to the electricity family — voltage, current, resistance, power, or energy — units that show up constantly when working across the different standards used by household wiring (120V/240V depending on region), automotive electrical systems (12V/24V), and electronics design. Specifically: Kilovolt is 1000 volt units, and millivolt is 0.001 volt units.
Formula
millivolts = kilovolts × 1000000
This factor comes from each unit's defined relationship to the category's base unit: 1 kilovolt equals 1000 base units, and 1 millivolt equals 0.001 base units, so dividing one by the other gives the direct kilovolt-to-millivolt factor of 1000000.
Simple example
1 kV × 1000000 = 1,000,000 mV
1 kilovolt = 1,000,000 millivolts.
Real-world example
120 kV × 1000000 = 120,000,000 mV
120 kilovolts = 120,000,000 millivolts.
Conversion table
| Kilovolt (kV) | Millivolt (mV) |
|---|---|
| 1 kV | 1,000,000 mV |
| 5 kV | 5,000,000 mV |
| 12 kV | 12,000,000 mV |
| 24 kV | 24,000,000 mV |
| 120 kV | 120,000,000 mV |
| 240 kV | 240,000,000 mV |
Reverse conversion: Millivolt to Kilovolt
1 mV × 0.000001 = 0.000001 kV
1 millivolt = 0.000001 kilovolts.
kilovolts = millivolts × 0.000001
For a page dedicated to this direction, see Millivolt to Kilovolt.
Understanding the Kilovolt (kV)
Kilovolt is 1000 volt units.
Understanding the Millivolt (mV)
Millivolt is 0.001 volt units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many millivolts are in 1 kilovolt?
1 kilovolt equals 1,000,000 millivolts, using the exact defined conversion factor rather than an estimate.
How do I convert kilovolt to millivolt?
Multiply the kilovolt value by 1000000. The converter above does this instantly to whatever precision you set.
How do I convert millivolt back to kilovolt?
Use the reverse factor: 1 millivolt equals 0.000001 kilovolts. You can also use the swap control in the converter above to flip the direction instantly.
What is a kilovolt?
Kilovolt (kV) is a unit of electricity.
What is a millivolt?
Millivolt (mV) is a unit of electricity.
Is the kilovolt to millivolt conversion exact?
Yes. Both kilovolt and millivolt are defined by fixed standards rather than physical artifacts, so the factor of 1000000 used above is exact to as many digits as you choose to display.
What's the difference between voltage, current, and resistance?
Voltage (volts) is the electrical potential difference driving current through a circuit. Current (amperes) is the rate of flow of electric charge. Resistance (ohms) is how much a component opposes that flow. They're related by Ohm's law (V = I × R), but they are distinct physical quantities, and this page converts between units of just one of them.