Easy to understand guide to dB calculation for audio by Chuck McGregor: http://www.audiosmile.com/forum/articles/dbcalc.pdf
dBu to Voltage - Find voltage if you know a dBu value
dBV to Voltage - Find voltage if you know a dBV value
Gain - Find the gain in dB if you know the input and output voltages
Voltage to dB - Find the difference in dB between 2 voltages
+dB and -dB - How to calculate + or - dB values
Voltage to dBu or dBV - Find dBu or dBV if you know the voltage
SPL Calculations - Find differences in SPL over distance
Watts to dB (or Watts to SPL) - Find the change in SPL for a difference in watts
dB to Watts (or SPL to Watts) - Find the change in watts for a difference in SPL
dBu to Voltage - Find voltage if you know a dBu value
dBV to Voltage - Find voltage if you know a dBV value
Gain - Find the gain in dB if you know the input and output voltages
Voltage to dB - Find the difference in dB between 2 voltages
+dB and -dB - How to calculate + or - dB values
Voltage to dBu or dBV - Find dBu or dBV if you know the voltage
SPL Calculations - Find differences in SPL over distance
Watts to dB (or Watts to SPL) - Find the change in SPL for a difference in watts
dB to Watts (or SPL to Watts) - Find the change in watts for a difference in SPL