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Dedicated unit pair

Millivolts to Volts

Convert mV to V instantly, then review the formula, assumptions, and rounding guidance.

Electrical unitsInstant result
Decimals
Formula result = input × 0.001 ÷ 1. 1 mV = 0.001 V
Common examples
One value, several units
Volts0.001 V
Kilovolts0 kV
Microvolts1,000 µV

Conversion table

mVV
1 mV0.001 V
2 mV0.002 V
5 mV0.005 V
10 mV0.01 V
25 mV0.025 V
50 mV0.05 V
100 mV0.1 V

Conversion chart

1 mV0.001 V
5 mV0.005 V
10 mV0.01 V
25 mV0.025 V
50 mV0.05 V
Worked example

1 kilovolt equals 1,000 volts.

Unit definition

Millivolts (mV) One millivolts equals 0.001 volt.

Unit history

Millivolts is represented here using its modern SI definition or an internationally accepted relationship to an SI base unit.

Step by step

1. Parse the value, including fractions.
2. Convert mV to volt.
3. Convert the base value to V and apply your display precision.

What this calculation means

Understand the result before using it

Millivolts to Volts converts a value measured in Millivolts (mV) into the equivalent value in Volts (V). The numerical value changes because the size and definition of the selected unit changes; the underlying quantity does not.

Calculated result

The conversion follows the displayed unit relationship. Display rounding can hide additional digits, and measured inputs cannot become more accurate merely by changing units.

Method

Formula, assumptions, and example

Formula

result = input × 0.001 ÷ 1

Assumptions

  • Millivolts and Volts represent the same voltage quantity.
  • The input is expressed in mV; the output is expressed in V.
  • The unit definitions and conventional relationship shown on this page apply.
Worked example

1 mV = 0.001 V. For another value, apply the same relationship and round only to the precision your source measurement supports.

When to use it

Good uses

  • Read a mV measurement in a document that expects V.
  • Compare a millivolts value with a value reported in volts.
  • Check the mV-to-V arithmetic before copying the result into another calculation.
Limitations

Common mistakes to avoid

  • Do not confuse mV with another unit that has a similar name or symbol.
  • Round the output to a precision justified by the original measurement.
  • Verify safety-critical, regulated, laboratory, and contractual conversions against the controlling standard.
References

Sources and further reading

These references explain the underlying standards or provide authoritative context. Your own contract, institution, clinician, product documentation, local code, or governing standard may be the controlling source.

SI BrochureInternational Bureau of Weights and Measures (BIPM)

Authoritative definitions of the International System of Units and SI prefixes.

FAQ

Questions about this calculation

How do I convert Millivolts to Volts?

result = input × 0.001 ÷ 1 Using the displayed relationship, 1 mV equals 0.001 V.

How many Volts are in one Millivolts?

One Millivolts is 0.001 Volts. The displayed digits may be rounded.

Can I reverse the mV to V conversion?

Yes. Swap the source and target units in the converter. The reverse relationship converts V back to mV.

Is the Millivolts to Volts result exact?

The conversion follows the displayed unit relationship. Display rounding can hide additional digits, and measured inputs cannot become more accurate merely by changing units.