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Convert Volts to Millivolts

1 volt = 1,000 millivolts. Multiply the number of volts by 1000.

Result
1,000

1 V = 1,000 mV

Multiply the number of volts by 1000.

Results are rounded for display. Double-check values for critical work.

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Volts to Millivolts table

VoltsMillivolts
1 V1,000 mV
2 V2,000 mV
3 V3,000 mV
4 V4,000 mV
5 V5,000 mV
10 V10,000 mV
20 V20,000 mV
25 V25,000 mV
50 V50,000 mV
100 V100,000 mV
500 V500,000 mV
1000 V1,000,000 mV

About these units

The volt (V) is an SI base or derived unit of voltage.

The millivolt (mV) is a metric unit of voltage, equal to 0.001 volts.

Going the other way, 1 millivolt = 0.001 volts. Electric potential spans twelve orders of magnitude in practice — microvolts from a thermocouple, kilovolts on a transmission line. Convert them all here.

Frequently asked

How many millivolts are in a volt?
1 volt = 1,000 millivolts.
How do you convert volts to millivolts?
Multiply the number of volts by 1000.
What is 10 V in mV?
10 V = 10,000 mV.

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