What temp is C in F?

What temp is C in F?

Please provide values below to convert Celsius [°C] to Fahrenheit [°F], or vice versa.


Definition: The Celsius (symbol: °C) is an SI (International System of Units) derived unit of temperature. It is defined based on the SI unit of temperature, the kelvin. The Celsius and Kelvin scales are precisely related, with a one-degree change in Celsius being equal to a one degree-change in kelvin. The kelvin (and thus Celsius) is defined based on the Boltzmann constant, k, which equals 1.380649 × 10-23 when expressed in the unit J·K-1, a unit equivalent to kg·m2·s-2·K-1. The kilogram, meter, and second, are defined based on Planck's constant, h, the speed of light, c, and cesium frequency, ΔνCs.

History/origin: From 1743 until 1954, the Celsius scale was based on 0°C for the freezing point of water and 100 °C for the boiling point of water, both at a pressure of one standard atmosphere, using mercury as the working material. This was not always the case, and originally 0°C was defined as the boiling point of water and 100°C was defined as the melting point of snow. Celsius as a unit and a scale was not widely used until this original definition was inverted. In 1954, the unit, "degree Celsius," as well as the Celsius scale were again re-defined to instead be based on absolute zero (-273.15 °C) and the triple point of VSMOW (specially purified water). This is the definition that was used up until 2019, when the kelvin was redefined based on the definitions of the second, meter, and kilogram.

Current use: The Celsius scale replaced the Fahrenheit scale in most countries in the mid to late 20th century. Almost all countries around the world use this scale, except for those in which the metric system has not been adopted, such as the United States. Even in countries like the United States however, Celsius is widely used within the scientific community—it just is not widely used in everyday temperature references.

Fahrenheit

Definition: The Fahrenheit (symbol: °F) is a unit of temperature that was widely used prior to metrication. It is currently defined by two fixed points: the temperature at which water freezes, 32°F, and the boiling point of water, 212°F, both at sea level and standard atmospheric pressure. The interval between the freezing and boiling point is divided into 180 equal parts.

History/Origin: The Fahrenheit scale was developed based on a measurement proposed in 1724 by the German physicist Daniel Gabriel Fahrenheit. He initially based the scale on an equal ice-salt mixture, selecting the values of 30°F for the freezing point of water, and 90°F for normal body temperature. He later adjusted the scale such that the melting point of ice was 32°F and body temperature was 96°F. He chose these values to simplify the degree markings he could make on his instruments, since this difference between the temperatures allowed him to mark degree lines by bisecting the interval six times. Later, when using the freezing and boiling points of water as fixed reference points for thermometers became popular, the scale was slightly re-defined such that there would be 180 degrees separating freezing and boiling point, resulting in normal human body temperature being approximately 98°F, rather than Fahrenheit's 96°F.

Current use: Until the 1960's the Fahrenheit scale was the primary scale used in English-speaking countries. Today, most countries around the world use the Celsius temperature scale instead, many having made the change during their metrication processes (conversion to using the metric system of units). However, the Fahrenheit scale is still used as the official temperature scale in a number of countries, including the United States (as well as its unincorporated territories), the Bahamas, Belize, the Cayman Islands, and a few others.

Celsius [°C]Fahrenheit [°F]
0.01 °C32.018 °F
0.1 °C32.18 °F
1 °C33.8 °F
2 °C35.6 °F
3 °C37.4 °F
5 °C41 °F
10 °C50 °F
20 °C68 °F
50 °C122 °F
100 °C212 °F
1000 °C1832 °F

Example: convert 15 °C to °F:
15 °C = 15 × 9/5 + 32 = 59 °F


Welcome to our Celsius to Fahrenheit converter. Here you can enter your temperature in Celsius, and our tool will convert it into Fahrenheit. You can also enter your temperature in Fahrenheit, and our tool will convert it into Celsius.

If you'd like to know how to convert Celsius to Fahrenheit and its formula, along with some examples, you're in the right place. 😊

Before we show what the Celsius to Fahrenheit conversion is, let's share some interesting facts regarding Celsius:

  • Anders Celsius is the name of a Swedish astronomer and mathematician who invented this temperature scale in 1742.

  • Initially, 0° Celsius was set as the boiling point of water, and 100° was its melting point. Later on, it was inverted.

  • We also refer to this scale as centigrade because it has 100 degrees of intervals between its defined freezing and boiling water points.

To use the Celsius to Fahrenheit converter:

  1. Enter your Celsius temperature in the first field, e.g., 20°C.

  2. The calculator will convert it into Fahrenheit and display it in the second field, e.g., 68°F.

  3. You can also use this in reverse and enter your Fahrenheit temperature to obtain your temperature in Celsius.

  4. Furthermore, you can switch either of the temperature units to convert into kelvins.

Here's the formula to convert Celsius to Fahrenheit:

  • °F=(°C×9/5)+32\degree F = (\degree C \times 9/5) + 32°F=(°C×9/5)+32

And here's the formula to convert Fahrenheit to Celsius:

  • °C=(°F−32)×5/9\degree C = (\degree F - 32) \times 5/9°C=(°F32)×5/9

where:

  • °F\degree F°F - the unit temperature in Fahrenheit; and
  • °C\degree C°C - the unit temperature in Celsius.

Here's an example:

  1. Let's use the formula to convert the boiling point of water, i.e., 100°C into Fahrenheit.

    Placing the values in the first formula, we get:

    °F=(100×9/5)+32=212\degree F = (100 \times 9/5) + 32 = 212°F=(100×9/5)+32=212

    Thus, if we convert 100 °C into Fahrenheit, we get 212 °F.

  2. Now let's convert 212°F back into Celsius.

    Placing the values in the second formula, we get:

    °C=(212−32)×5/9=100\degree C = (212 - 32) \times 5/9 = 100°C=(21232)×5/9=100

    Thus, if we convert 212 °F back into Celsius, we still get 100 °C.

Here's a Celsius to Fahrenheit chart displaying a range of some temperature values between the freezing and boiling point of water:

It's 392 degrees Fahrenheit when you convert 200 Celsius to Fahrenheit. Though it's a suitable temperature for cooking, it's not great for survival unless you're a Human Torch like in the Fantastic Four.

To convert Celsius to Fahrenheit:

  1. Multiply the Celsius by 9/5, i.e., 1.8.
  2. Add 32 to the result.
  3. Or use the Celsius to Fahrenheit formula below:

where:

  • F - the temperature in Fahrenheit; and
  • C - the temperature in Celsius.

To convert Fahrenheit to Celsius:

  1. Subtract 32 from Fahrenheit.
  2. Multiply it by 5/9.
  3. Or use the Fahrenheit to Celsius conversion equation:

where:

  • C - the temperature in Celsius; and
  • F - the temperature in Fahrenheit.

-273.15 °C is the lowest possible temperature in Celsius because that's when everything freezes.

It is known as the absolute zero in Kelvin temperature, as that's when all the particles become completely stationary.

The temperature of 180 Celsius is 356 Fahrenheit. To find it, multiply the Celsius by 9/5 and add 32 to the result. You can also use the formula below: