Temperature Converter
Convert a temperature reading between Celsius, Fahrenheit, and Kelvin.
Try a worked example
Try a worked example
Convert a temperature reading between Celsius, Fahrenheit, and Kelvin.
Check the units and options, then use the tool’s calculation button. The example is fictitious; replace its values for your own calculation.
Example input
- Temperature value
- 20
- Starting scale
- Celsius (°C)
Expected output
Input: 20 °C Celsius: 20.00 °C Fahrenheit: 68.00 °F Kelvin: 293.15 K
Convert one temperature reading to Celsius, Fahrenheit, and Kelvin.
Waiting for the tool. The explanation remains available without JavaScript.
Method and limits
Enter the number and select the scale that number is already in. The result shows the equivalent reading in all three scales, rounded to two decimal places.
This converts a temperature reading, not a change in temperature. Values below absolute zero are rejected; results are rounded to two decimal places.
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Quick answer
Convert one temperature reading to Celsius, Fahrenheit, and Kelvin.
The page and its assets load from the site; this operation uses your entered values only in this browser and does not send them to a calculation endpoint.
How to use it
Enter the number and select the scale that number is already in. The result shows the equivalent reading in all three scales, rounded to two decimal places.
Limits
This converts a temperature reading, not a change in temperature. Values below absolute zero are rejected; results are rounded to two decimal places.
Frequently asked questions
How do I choose the starting scale?
Choose the scale of the value you entered: Celsius (°C), Fahrenheit (°F), or Kelvin (K). The result then gives equivalents in all three.
Can I convert a temperature difference?
This tool converts a temperature reading. Converting a change in temperature uses different formulas because the scales have different zero points.
Sources and references
These references document the cited standard or browser API; they do not validate the tool’s output.