Temperature Conversion

With our temperature conversion tool, you can switch between many different temperature units with minimum effort.

This temperature converter possesses eight different temperature scales that you can choose from. With our temperature calculator, you can convert:

• Celsius to Fahrenheit;
• Celsius to Kelvin;
• Fahrenheit to Celsius;
• Fahrenheit to Kelvin;
• Kelvin to Celsius;
• Kelvin to Fahrenheit; and
• Other temperature scales besides the three main ones.

Simply put, the temperature measures the average kinetic energy of the molecules of a system. It indicates the flow of heat when two objects are in contact with each other (from higher to lower temperature), and we can use many scales to measure it.

The three main temperature scales and units are Kelvin (K), Celsius (°C), and Fahrenheit (°F):

• Kelvin: this is an absolute temperature scale because it utilizes absolute zero (-273,15 °C) as its zero point. The unit used in this scale was redefined in 2019 using the Boltzmann constant, and now one kelvin equals the change in the thermodynamic temperature that results in a change in thermal energy of 1.380649 × 10⁻²³ J.
• Celsius: created by Anders Celsius, this scale was originally designed by setting each "degree" to 1/100th of the difference in temperature between freezing (0 °C) and boiling water (100 °C). A one-degree temperature change in Celsius degrees equals a one-degree temperature change in kelvins.
• Fahrenheit: when Daniel Gabriel Fahrenheit created this scale, it used 30 °F and 90 °F for the freezing point of water and normal body temperature, respectively. Later, this was corrected to use 32 °F for the freezing point of water and 212 °F for its boiling point.

Let's see how the temperature conversion works before using our temperature converter.

We can make switching between Celsius and Fahrenheit easy with some formulas. To convert Celsius to Fahrenheit:

and Fahrenheit to Celsius:

where:

• $T_{C}$ is the temperature in Celsius degrees; and
• $T_{F}$ is the temperature in Fahrenheit.

We can easily convert between Kelvin and Celsius since the temperature difference is the same on both scales. They only differ in their zero temperature.

To convert Kelvin to Celsius, we should subtract 273.15 from the temperature in kelvins. To convert Celsius to Kelvin instead, we should add 273.15 to the temperature in Celsius.

The formula to convert Kelvin to Fahrenheit is:

and if we want to convert Fahrenheit to Kelvin:

where:

• $T_{K}$ is the temperature in kelvins; and
• $T_{F}$ is the temperature in Fahrenheit.