If you want to know about 21 degrees C to F calculation, you can check this article.
This is the formula to convert from Celsius to Fahrenheit:
°F=°C×(9÷5)+32
It helps you to convert 21 degrees Celsius to Fahrenheit on a scale.
How to Convert 21 Celsius to Fahrenheit?
Now we can convert 21 C to F,
Here, 21 C means 21° Celsius.
Calculation:
F=21°×(9÷5)+32
F=21°×1.8+32
F=37.8°+32
F=69.8° Fahrenheit
Therefore, 21 degrees Celsius is equivalent to 69.8° F.
Now we can convert negative -21 C to F,
Here, -21 C means minus -21° Celsius.
Minus Calculation:
F=-21°×(9÷5)+32
F=-21°×1.8+32
F=-37.8°+32
F=-5.8° Fahrenheit
Therefore, -21° C is equivalent to -5.8° F.