Axis

Radiometry

watt per steradian square metreW/(sr·m²)

The SI unit of radiance.

Dimension
M/T⁻³
Canonical signature
M*T^-3
System
si
Exactness
Exact

Definition record

How this unit is defined

Canonical base
1 W/(sr·m²) = 1 W/m²
Conversion type
linear
Aliases
W/(sr m2), radiance

Same dimension

Related units

watt per square metresiW/m²BTU per hour-ft²imperial usBTU/(h·ft²)decibel SILcommondB SIL

Common conversions

Every conversion routes through the canonical base of the dimension.

1 W/(sr·m²) = 1 W/m²

Exact relationship

10 W/(sr·m²) = 10 W/m²

Exact relationship