-9 °C (degrees Celsius)

≈ 264 K (kelvins)

≈ 20 °F (degrees Fahrenheit)

≈ 470 °R (degrees Rankine)

≈ -8 °Ré (degrees Réaumur)

≈ 3 °Rø (degrees Rømer)

24 °C below temperature at standard temperature and pressure using the convention of European and South American natural gas companies (15 °C)

9 °C below temperature at standard temperature and pressure using the International Union of Pure and Applied Chemistry convention (0 °C)

8 °C above temperature of the ice/salt mixture defining the zero point of the Fahrenheit temperature scale (0 °F)

Thermodynamic energy E from E = kT: | 23 meV (millielectronvolts)

Blackbody energy flux Φ from Φ = σT^4: | 270 W/m^2 (watts per square meter)

Approximate luminous exitance from a planar blackbody radiator perpendicular to its surface: | 2.4×10^-25 lx (lux)