# Celsius Formula

The degree Celsius or just Celsius, also known as the scale centigrade, is a scale used to measure temperature in the International System of Units (SI). Before being renamed to honor Anders Celsius in 1948, the unit was called centigrade, from the Latin *centum*, which means 100, and *gradus*, which means steps. There are three scales to measure the temperature: Celsius, Kelvin and Fahrenheit.

kelvin = celsius + 273.15

The equation is written

K = C + 273.15

We have:

K = kelvin

C = Celsius

from Celsius to Fahrenheit

Fahrenheit = Celsius*9/5 + 32

The equation is written

F = C *9/5 + 32

We have:

F = Fahrenheit

C = Celsius

Celsius Questions:

1) How much are 60^{ o}C in K?

Answer: We will transform the temperature measurement from Celsius to Kelvin using the first formula, where C = 60 ^{o}C.

K = C+ 273.15

K = 60 ^{o}C + 273.15

K = 333.15 K.

2) How much are 85^{ o}C in ^{o}F?

Answer: We will transform the temperature measurement from Celsius to Kelvin using the second formula, where C = 85 ^{o}C.

F = C *9/5 + 32

F = 85 ^{o}C *9/5+32

F = 185 ^{o}F.

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