Celsius to Fahrenheit conversion formula is Fahrenheit = Celsius * 1.8 + 32.
To convert Celsius to Fahrenheit, multiply by 1.8 (the ratio between °C and °F) and add 32 (freezing point of °F - freezing point of °C; that is 32 - 0 = 32).
For example: To convert from 30 °C to °F, multiply the Celsius value by 1.8 and add 32, that is: 30 °C * 1.8 + 32 = 86 °F .
The 1.8 °C and °F ratio is calculated as (boiling point for Fahrenheit, 212°F - freezing point for Fahrenheit, 32°F) / (boiling point for Celsius, 100°C - freezing point for Celsius, 0°C), that is 180 / 100 = 1.8 ratio between Celsius and Fahrenheit.
Celsius (centigrade) is a temperature scale with the freezing point of water is 0 degree and the boiling point of water is 100 degrees under standard atmospheric pressure (101.325 kPa). The absolute zero temperature is -273.15 °C. The symbol for Celsius is "°C".
Fahrenheit is a temperature scale with the freezing point of water is 32 degrees and the boiling point of water is 212 degrees under standard atmospheric pressure (101.325 kPa). The absolute zero temperature is -459.67 °F. The symbol for Fahrenheit is "°F".
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