Convert Volts to Millivolts

Enter the voltage in volts below to get the value converted to millivolts.

Results in Millivolts:
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1 V = 1,000 mV
Do you want to convert millivolts to volts?

How to Convert Volts to Millivolts

conversion scale showing volts and equivalent millivolts voltage values

To convert a volt measurement to a millivolt measurement, multiply the voltage by the conversion ratio. One volt is equal to 1,000 millivolts, so use this simple formula to convert:

millivolts = volts × 1,000

The voltage in millivolts is equal to the volts multiplied by 1,000.

For example, here's how to convert 5 volts to millivolts using the formula above.
5 V = (5 × 1,000) = 5,000 mV

Volts and millivolts are both units used to measure voltage. Keep reading to learn more about each unit of measure.


Voltage is a measurement of electromotive force and the electrical potential difference between two points of a conductor. One volt is equal to the potential difference that would move one ampere of current against one ohm of resistance.

The volt is the SI derived unit for voltage in the metric system. Volts can be abbreviated as V, for example 1 volt can be written as 1 V.

Ohm's Law states the current between two points on a conductor is proportional to the voltage and inversely proportional to the resistance. Using Ohm's Law, it's possible to express the potential difference in volts as an expression using current and resistance.

VV = IA × R

The potential difference in volts is equal to the current in amperes times the resistance in ohms.


One millivolt is equal to 1/1,000 of a volt, which is the potential difference that would move one ampere of current against one ohm of resistance.

The millivolt is a multiple of the volt, which is the SI derived unit for voltage. In the metric system, "milli" is the prefix for 10-3. Millivolts can be abbreviated as mV, for example 1 millivolt can be written as 1 mV.

Volt Measurements and Equivalent Millivolt Conversions

Common volt values converted to the equivalent millivolt value
Volts Millivolts
1 V 1,000 mV
2 V 2,000 mV
3 V 3,000 mV
4 V 4,000 mV
5 V 5,000 mV
6 V 6,000 mV
7 V 7,000 mV
8 V 8,000 mV
9 V 9,000 mV
10 V 10,000 mV
11 V 11,000 mV
12 V 12,000 mV
13 V 13,000 mV
14 V 14,000 mV
15 V 15,000 mV
16 V 16,000 mV
17 V 17,000 mV
18 V 18,000 mV
19 V 19,000 mV
20 V 20,000 mV
21 V 21,000 mV
22 V 22,000 mV
23 V 23,000 mV
24 V 24,000 mV
25 V 25,000 mV
26 V 26,000 mV
27 V 27,000 mV
28 V 28,000 mV
29 V 29,000 mV
30 V 30,000 mV
31 V 31,000 mV
32 V 32,000 mV
33 V 33,000 mV
34 V 34,000 mV
35 V 35,000 mV
36 V 36,000 mV
37 V 37,000 mV
38 V 38,000 mV
39 V 39,000 mV
40 V 40,000 mV

More Volt Voltage Conversions

SI Units
Convert to Nanovolts
1 V is equal to 1,000,000,000 nanovolts
Convert to Microvolts
1 V is equal to 1,000,000 microvolts
Convert to Kilovolts
1 V is equal to 0.001 kilovolts
Convert to Megavolts
1 V is equal to 1.0E-6 megavolts
Convert to Gigavolts
1 V is equal to 1.0E-9 gigavolts
Centimetre–Gram–Second Units
Convert to Statvolts
1 V is equal to 0.003336 statvolts
Convert to Abvolts
1 V is equal to 100,000,000 abvolts