**Disclaimer:** We've spent hundreds of hours building and testing our calculators and conversion tools. However, we cannot be held liable for any damages or losses (monetary or otherwise) arising out of or in connection with their use. Full disclaimer.

## How to convert Celsius to Fahrenheit (°C to °F)

The formula for converting Celsius to Fahrenheit is: °F = (9⁄5 × °C) + 32. To calculate the Celsius value in Fahrenheit first substitute the Celsius value into the preceding formula, and then perform the calculation. If we wanted to calculate 1 Celsius in Fahrenheit we follow these steps:

°F = (9⁄5 × °C) + 32

°F = (9⁄5 × 1) + 32

°F = 33.8

In other words, 1 Celsius is equal to 33.8 Fahrenheit.

## Example Conversion

Let's take a look at an example. The step-by-step process to convert 4 Celsius to Fahrenheit is:

- Understand the conversion formula: °F = (9⁄5 × °C) + 32
- Substitute the required value. In this case we substitute 4 for °C so the formula becomes: °F = (9⁄5 × 4) + 32
- Calculate the result using the provided values. In our example the result is: (9⁄5 × 4) + 32 = 39.2 °F

In summary, 4 Celsius is equal to 39.2 Fahrenheit.

## Converting Fahrenheit to Celsius

In order to convert the other way around i.e. Fahrenheit to Celsius, you would use the following formula: °C = 5⁄9 × (°F - 32). To convert Fahrenheit to Celsius first substitute the Fahrenheit value into the above formula, and then execute the calculation. If we wanted to calculate 1 Fahrenheit in Celsius we follow these steps:

°C = 5⁄9 × (°F - 32)

°C = 5⁄9 × (1 - 32)

°C = -17.22222222222222

Or in other words, 1 Fahrenheit is equal to -17.22222222222222 Celsius.

## Conversion Unit Definitions

### What is a Celsius?

Temperature Scale: The Celsius scale is based on dividing the temperature range between the freezing and boiling points of water into 100 equal divisions or degrees. On this scale, the freezing point of water is defined as 0 degrees Celsius (°C), and the boiling point of water is defined as 100 degrees Celsius (°C) at standard atmospheric pressure.

Metric System: Celsius is part of the metric system, which is a decimal-based system of measurement used internationally. The metric system provides a coherent and standardized system for measuring various quantities, including temperature.

Conversion: Celsius can be converted to other temperature scales. One of the most common conversions is to the Fahrenheit scale. The formula to convert Celsius to Fahrenheit is: Fahrenheit = (Celsius x 9/5) + 32. Similarly, Celsius can be converted to the Kelvin scale by adding 273.15 to the Celsius measurement.

Common Uses: Celsius is commonly used to measure temperature in scientific, meteorological, and everyday contexts. It is used in weather forecasts, climate studies, laboratory experiments, household thermometers, and many other applications.

Symbol: The symbol for degrees Celsius is "°C". For example, a temperature measurement of 25 degrees Celsius would be written as 25 °C.

Temperature Range: The Celsius scale covers a wide range of temperatures, from extreme cold to extreme heat. The lowest temperature on the Celsius scale is -273.15 degrees Celsius, which is known as absolute zero. This temperature represents the lowest possible temperature at which molecular motion ceases.

International Usage: The Celsius scale is widely used internationally as a standard unit of temperature measurement, especially in countries that have adopted the metric system. Its usage promotes consistency, compatibility, and ease of communication across different regions and scientific fields.

### What is a Fahrenheit?

Temperature Scale: The Fahrenheit scale divides the temperature range between the freezing and boiling points of water into 180 equal divisions or degrees. On this scale, the freezing point of water is defined as 32 degrees Fahrenheit (°F), and the boiling point of water is defined as 212 degrees Fahrenheit (°F) at standard atmospheric pressure.

Origin: The Fahrenheit scale was originally based on three reference points: the freezing point of a brine solution, the average human body temperature, and the body temperature of horses. However, over time, these reference points have been refined and standardized to the freezing and boiling points of water.

Metric System: Fahrenheit is not part of the metric system but is still used in certain countries. It is primarily used in the United States, along with a few other nations that have historical ties to the United States or limited cultural influences from it.

Conversion: Fahrenheit can be converted to other temperature scales. One common conversion is to Celsius. The formula to convert Fahrenheit to Celsius is: Celsius = (Fahrenheit - 32) x 5/9. Fahrenheit can also be converted to the Kelvin scale by first converting to Celsius and then adding 273.15.

Symbol: The symbol for degrees Fahrenheit is "°F". For example, a temperature measurement of 75 degrees Fahrenheit would be written as 75 °F.

Common Uses: Fahrenheit is commonly used in everyday contexts in countries that primarily use the Fahrenheit scale. It is used in weather forecasts, discussions of outdoor temperatures, oven and cooking temperatures, and temperature readings on household thermometers.

International Usage: The Fahrenheit scale is not widely used internationally, as the Celsius scale is the standard for temperature measurement in most countries around the world. However, it is still relevant and used in the United States and a few other nations.

## Celsius To Fahrenheit Conversion Table

Below is a lookup table showing common Celsius to Fahrenheit conversion values.

Celsius (°C) | Farenheit (°F) |
---|---|

1 °C | 33.8 °F |

2 °C | 35.6 °F |

3 °C | 37.4 °F |

4 °C | 39.2 °F |

5 °C | 41 °F |

6 °C | 42.8 °F |

7 °C | 44.6 °F |

8 °C | 46.4 °F |

9 °C | 48.2 °F |

10 °C | 50 °F |

11 °C | 51.8 °F |

12 °C | 53.6 °F |

13 °C | 55.4 °F |

## Other Common Celsius Conversions

Below is a table of common conversions from Celsius to other temperature units.

Conversion | Result |
---|---|

1 Celsius in Rankine | 493.47 °R |

1 Celsius in Kelvin | 274.15 K |