decibel calculator

enter any value and click calculate (next to the input box). the results will be displayed.

enter a value:

dB:
voltage gain:
power gain:

dBm:
power:
voltage:
load =
ohms        
decibel calculation formula

decibel is a quantitative measurement of sound intensity, measured in twelve-note scale units (dba). decibel is a ratio that can be used to compare the intensity of different sounds and can be used to measure the duration and frequency of sounds.

the decibel calculation formula is: decibel (db) = 10 × log2 (sound pressure level/reference sound pressure level). sound pressure level is a unit of measurement of sound intensity. it refers to the level of pressure that sound creates in the air. the unit is pascal (pa). the reference sound pressure level is a specific value, generally 20μpa.

using the decibel calculation formula to measure the intensity of sound can give us a more accurate understanding of the size of the sound, allowing us to better control and manage it.
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