Axis

Sound level

decibel SWLdB SWL

Sound power level relative to 10⁻¹² W.

Dimension
power
Canonical signature
L^2*M*T^-3
System
common
Exactness
Exact by definition

Definition record

How this unit is defined

Canonical base
1 dB SWL = 1.25892541179e-12 W
Conversion type
log
Aliases
sound power level, dB power

Same dimension

Related units

wattsiWhorsepower (mechanical)imperial ushpquettawattsiQWronnawattsiRWyottawattsiYWzettawattsiZWexawattsiEWpetawattsiPW

Common conversions

Every conversion routes through the canonical base of the dimension.

1 dB SWL = 1.25892541179e-12 W

Exact by definition relationship

10 dB SWL = 1e-11 W

Exact by definition relationship