1 Degree Celsius = 1 Degree Kelvin (They just have a different starting point)
Kelvin = Celsius + 273.15
291.15 K = 18C + 273.15
The Celsius temperature scale (as does the Fahrenheit and Kelvin scale) works on the principle that the higher the number the warmer the temperature.So you need to order these numbers in descending order if you want the warmest first. If you remember that a positive number is always larger than a negative number then you will see that the order of your example will be:18 degrees C, 4 degrees C, 0 degrees C, -1 degrees C, -11 degrees C, -18 degrees C.
13
18 degrees of the Celsius (or absolute) scale
18
18
18 degrees Celsius is 64.5 degrees Fahrenheit or 291 kelvin. Not cold.
0 degrees Fahrenheit is approximately -18 degrees Celsius, and 255 Kelvin
-18 degrees Celsius = -0.4 degrees Fahrenheit
18 degrees Celsius = 64.4 degrees Fahrenheit.
18 deg Celsius = 64.4 deg Fahrenheit.
It would have to rise 18 degrees Celsius.
18 degrees Celsius minus 25 degrees Celsius equals -7 degrees Celsius.
18 degrees Celsius is colder than 20 degrees Celsius.
-18 degrees Celsius is colder than -12 degrees Celsius. The lower the temperature in degrees Celsius, the colder it is. In this case, -18 degrees Celsius is 6 degrees colder than -12 degrees Celsius.
27.6
-7.78 degrees Celsius.
18 degrees Fahrenheit = -7.7 degrees Celsius.