Temperature scales:
Celsius and Fahrenheit can contain
negative values.
Kelvin cannot fall below
absolute zero,
which is 0 K or −273.15°C.
Useful reference points
Absolute zero
−273.15°C · −459.67°F · 0 K
Water freezes
0°C · 32°F · 273.15 K
Typical room temperature
20°C · 68°F · 293.15 K
Human body temperature
37°C · 98.6°F · 310.15 K
Water boils*
100°C · 212°F · 373.15 K
*Water boiling point:
100°C / 212°F is the standard
boiling point of water at approximately
normal atmospheric pressure.
The actual boiling point changes
with atmospheric pressure and altitude.
How the temperature converter works
Enter a temperature, choose the scale
you are converting
from,
and choose the scale you want to convert
to.
Press
Convert Temperature
to see the converted value.
The results section also displays the
equivalent temperature in Celsius,
Fahrenheit and Kelvin.
Celsius to Fahrenheit:
multiply the Celsius temperature by 9/5,
then add 32.
Fahrenheit to Celsius:
subtract 32 from the Fahrenheit
temperature, then multiply by 5/9.
Celsius to Kelvin:
add 273.15 to the Celsius temperature.
Kelvin is an absolute temperature scale.
A temperature below
0 K
is below absolute zero and is therefore
not accepted by this converter.