About this Temperature Converter
Temperature Converter changes values among Celsius, Fahrenheit and Kelvin. It is useful for weather, recipes, science references and equipment specifications when the source uses a different scale.
Formula or method
Celsius and Fahrenheit use linear scale formulas; Kelvin is offset from Celsius by 273.15.
Example
0°C equals 32°F and 273.15 K.
Common uses
- Convert a weather temperature between Celsius and Fahrenheit.
- Check a scientific value in Kelvin.
- Convert oven or process temperatures between common scales.
How to use this tool
- Enter the values or text requested by the calculator.
- Choose units or options when the tool provides them.
- Select the calculation button and review the result.
- Use the formula, example and notes on this page to check whether the result fits your situation.
Important note
Inputs below absolute zero are physically invalid and are rejected by the calculator.
Frequently asked questions
What is absolute zero?
Absolute zero is 0 K, equal to −273.15°C or −459.67°F. Values below it are not valid physical temperatures.
Why is Kelvin shown without a degree symbol?
Kelvin is written with K rather than °K.