Recognised as Temperature
49 kelvin
- Temperature
- K
- SI
49 kelvin is a measurement of temperature. That is -224.15 degrees Celsius, or -371.47 degrees Fahrenheit. Below it is converted into all 5 units Nerdulator knows for temperature.
Common conversions
degrees Celsius-224.15 °C
degrees Fahrenheit-371.47 °F
Every other unit of temperature
degrees Rankine88.2 °R
degrees Réaumur-179.32 °Ré
About this quantity
CategoryTemperature
Unitkelvin (K)
SystemSI
In kelvins (the base unit)49 K
DefinitionFixed by defining the Boltzmann constant as exactly 1.380649 × 10⁻²³ joules per kelvin.exact by definition, under the 2019 revision of the SI
Against the fixed points
Absolute zero0 K49 K above 49 kelvin
Water freezes273.15 K224.15 K below 49 kelvin
Human body temperature310.15 K261.15 K below 49 kelvin
Water boils at sea level373.15 K324.15 K below 49 kelvin
State of water at this temperatureSolid (ice)at standard atmospheric pressure
Below absolute zeroNo
In kelvin above absolute zero49 K
Keep nerding
Every link below is a page Nerdulator can generate from what it already knows about this value.
Nearby quantities
The same value in other units
Focused conversions
Just the number
Nerdulate something else
Nothing in mind? Surprise me · today’s page