dBµV Converter Calculator
Convert between linear voltage and dBµV using the one microvolt reference commonly used in EMC reports.
Input
Convert between linear voltage and dB microvolts, referenced to 1 microvolt.
dBµV is a voltage level relative to 1 µV and appears often in conducted-emissions reports and EMC limits.
Result
Equation: dBµV = 20 log10(V / 1 µV).
dBµV is a referenced voltage unit
EMC reports often show voltage levels in dBµV. This converter changes between that logarithmic value and the equivalent linear voltage.
Reference basis
Zero dBµV equals one microvolt.
Linear voltage
Convert report values back into volts, millivolts, or microvolts.
Report checks
Use the result as a unit conversion, not a complete compliance assessment.
Related calculators
Engineering reference
Equations, assumptions, and design guidance
Converts between linear voltage and dBµV using the conventional one-microvolt reference level.
Equations and variables
dBµV = 20 * log10(V / 1 µV)V = 1 µV * 10^(dBµV / 20)- V
- Linear voltage (V)
- L
- Voltage level relative to one microvolt (dBµV)
Assumptions and limitations
Assumptions
- The linear voltage is positive.
- The quantity uses the same detector convention as the source measurement or limit.
Limitations
- Detector type, bandwidth, impedance, transducer factors, and measurement uncertainty are not included.
Worked example and design use
One millivolt level
Inputs: V = 1 mV
Outputs: Level = 60 dBµV
Design guidance
- Apply probe, LISN, antenna, cable, and attenuator correction factors separately when interpreting EMC measurements.