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A degree sign followed by a capital C, marking a temperature in Celsius.
Also known as: Centigrade
°C is the SI symbol for the degree Celsius. The SI accepts it alongside the kelvin, defines it as an exactly equal interval, and requires a space before it: 20 °C.
Denotes the degree Celsius, the SI unit of Celsius temperature, accepted for use with the SI alongside the kelvin.
Contexts: Mathematics
Is written with a space between the number and the symbol, and with no space inside the symbol: 20 °C, not 20°C or 20° C.
Contexts: Mathematics
Names an interval identical in size to the kelvin, so a temperature difference may be stated in either unit, while the two scales differ in origin by 273.15.
Contexts: Mathematics
Is encoded both as a single character, U+2103 DEGREE CELSIUS, and as a degree sign followed by a capital C — the two-character form being the one normally recommended for text.
Contexts: Software
A small raised circle sitting at the height of the capital letters, followed by a capital Latin C drawn as an open curve facing right.
Identical in construction and different in scale; a number without its letter is ambiguous and sometimes dangerously so.
Both reduce to a bare letter c and appear together in scientific writing.
The same interval size, a different origin, and only one of the two takes a degree sign.
The degree sign is the first of its two characters.