Input interpretation
helium | boiling point
Result
-268.93 °C (degrees Celsius)
Unit conversions
4.22 K (kelvins)
-452.07 °F (degrees Fahrenheit)
7.6 °R (degrees Rankine)
-215.14 °Ré (degrees Réaumur)
-133.69 °Rø (degrees Rømer)
Comparisons as temperature
0.97 °C below critical point of helium (5.19 K)
2.05 °C above (lower) lambda point of overbound superfluid helium (at 0.0497 atmospheres) (2.172 K)
2.46 °C above (upper) lambda point of overbound superfluid helium (at 29.8 atmospheres) (1.76 K)
Corresponding quantities
Thermodynamic energy E from E = kT: | 0.36 meV (millielectronvolts)
Blackbody energy flux Φ from Φ = σT^4: | 1.8×10^-5 W/m^2 (watts per square meter)