Decibel to Power Percentage Calculator
This tool converts a decibel (dB) value into a corresponding power percentage relative to the reference level. Enter a dB value to see the equivalent percent of power.
Verify critical audio or RF measurements with calibrated equipment.
Examples
- 3 dB ⇒ 199.53 %
- -10 dB ⇒ 10 %
FAQ
What does a negative dB value mean?
It indicates power lower than the reference level.
Is 0 dB equal to 100%?
Yes, 0 dB corresponds to the reference power.
Can this calculator handle fractional dB values?
Yes, decimals are supported for precise conversions.
Additional Information
- Uses formula 10^(dB/10)*100 to convert decibels to power percentage.
- Common in audio engineering and signal processing.
Document references with ISO guidance
Review the decibel explainer to confirm when to use 10 log or 20 log conversions, then consult the sound pressure level, sound power level, and sound intensity level guides before connecting ratio levels with the radian and steradian resources when plotting Bode magnitude and phase or comparing acoustic coverage with lighting distributions.