The volt (V) is the SI unit of electric potential difference, the "push" that drives current through a circuit.
Volts to Millivolts
Convert Volt (V) to Millivolt (mV) instantly with an exact formula, conversion table, and FAQ.
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Convert volts (V) to millivolts (mV) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A millivolt (mV) equals one-thousandth of a volt and is common in sensor and biomedical signal measurements.
mV = V × 1000
Results update instantly for Volts to Millivolts conversions.
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Formula
mV = V × 1000
V = mV × 0.001
Conversion table
| 1 V | 1000 mV |
| 5 V | 5000 mV |
| 10 V | 10000 mV |
| 20 V | 20000 mV |
| 50 V | 50000 mV |
| 100 V | 100000 mV |
| 500 V | 500000 mV |
| 1000 V | 1.000000e+06 mV |
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How the formula works
Both volt and millivolt measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in volts by 1000 to get millivolts. To reverse the conversion, multiply a millivolt value by 0.001 to get back to volts.
Frequently asked questions
What is Volt (V)?
The volt (V) is the SI unit of electric potential difference, the "push" that drives current through a circuit.
What is Millivolt (mV)?
A millivolt (mV) equals one-thousandth of a volt and is common in sensor and biomedical signal measurements.
How do I convert volts to millivolts?
Multiply the volt value by 1000 to get the equivalent in millivolts. For example, 5 V × 1000 = 5000 mV.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 1000 is an exact, non-rounded value.
Can I convert millivolts back to volts?
Yes. Divide the millivolt value by 1000, or multiply it by 0.001, to get volts.
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About converting volts to millivolts
The volt (V) is the SI unit of electric potential difference, the "push" that drives current through a circuit. A millivolt (mV) equals one-thousandth of a volt and is common in sensor and biomedical signal measurements.
Use this calculator to move between volts and millivolts accurately for homework, engineering, billing, or everyday electricity calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.