All Temperature Units

Convert all temperature units instantly. Celsius, Fahrenheit, Kelvin conversions with formulas in one tool.

How to Convert Temperature Units?

Temperature conversion involves mathematical formulas to translate values between different temperature scales. The three main scales are Celsius, Fahrenheit, and Kelvin. Celsius and Fahrenheit are commonly used in daily life, while Kelvin is the standard unit in scientific applications.

The key conversion formulas are:
- Celsius to Fahrenheit: F = (C x 9/5) + 32
- Fahrenheit to Celsius: C = (F - 32) x 5/9
- Celsius to Kelvin: K = C + 273.15
- Kelvin to Celsius: C = K - 273.15

Units

Celsius

Celsius, also known as centigrade, is the most widely used temperature scale worldwide. It was developed by Swedish astronomer Anders Celsius in 1742. The scale is based on the freezing point of water at 0 degrees and the boiling point at 100 degrees under standard atmospheric pressure. Celsius is used in most countries for weather forecasts, cooking, and everyday temperature measurements.

Fahrenheit

Fahrenheit is a temperature scale proposed by German physicist Daniel Gabriel Fahrenheit in 1724. Water freezes at 32 degrees F and boils at 212 degrees F. It is primarily used in the United States and some Caribbean nations for weather forecasting, cooking, and indoor climate control. The scale offers more granularity for everyday temperatures since the degree intervals are smaller than Celsius.

Kelvin

Kelvin is the base unit of temperature in the International System of Units (SI). Unlike Celsius and Fahrenheit, Kelvin does not use degrees. It starts at absolute zero (0 K = -273.15 C), the theoretical point where all molecular motion stops. Kelvin is essential in scientific research, physics, chemistry, and engineering applications where precise temperature measurements are required.

Common Temperature Conversions

FromToValue
0 CFahrenheit32 F
100 CFahrenheit212 F
37 CFahrenheit98.6 F
20 CFahrenheit68 F
32 FCelsius0 C
212 FCelsius100 C
98.6 FCelsius37 C
0 CKelvin273.15 K
100 CKelvin373.15 K
273.15 KCelsius0 C
-40 CFahrenheit-40 F
25 CFahrenheit77 F