# Amplification Power and Voltage Calculator ~ dB dBm Watt Volt Amper

http://www.sengpielaudio.com/calculator-amplification.htm http://www.sengpielaudio.com/calculator-db.htm

3 dB ≡ 1.414 times the voltage (−)3 dB ≡ damping to the value 0.707 6 dB ≡ 2 times the voltage (−)6 dB ≡ damping to the value 0.5 10 dB ≡ 3.162 times the voltage (−)10 dB ≡ damping to the value 0.316 12 dB ≡ 4 times the voltage (−)12 dB ≡ damping to the value 0.25 20 dB ≡ 10 times the voltage (−)20 dB ≡ damping to the value 0.1

Using voltage we get: Level in dB: L = 20 × log (voltage ratio)

6 dB = twice the voltage 12 dB = four times the voltage 20 dB = ten times the voltage 40 dB = hundred times the voltage

3 dB ≡ 2 times the power (−3) dB ≡ damping to the value 0.5 6 dB ≡ 4 times the power (−6) dB ≡ damping to the value 0.25 10 dB ≡ 10 times the power (−10) dB ≡ damping to the value 0.1 12 dB ≡ 16 times the power (−12) dB ≡ damping to the value 0.0625 20 dB ≡ 100 times the power (−20) dB ≡ damping to the value 0.01 Using power we get: Level in dB: L = 10 × log (power ratio)

3 dB = twice the power 6 dB = four times the power 10 dB = ten times the power 20 dB = hundred times the power If you search for the amplification ratio, given the dB value, then go to the program dB calculation