This page converts a temperature from kelvin to Celsius. Use it to compare weather readings, laboratory temperatures or equipment settings on the same scale.
Kelvin To Celsius Converter
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Table of Contents
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What is Kelvin To Celsius?
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How to Use This Calculator
- Enter or select Kelvin.
- Check the unit beside each measurement. For a percentage or rate, use the scale and time period stated in the form.
- Choose Calculate, then compare the output with the formula and example below. If you change a value or option, calculate again to update the result.
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Formula Used
°C = K − 273.15
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Variables Explained
| Input | What it means |
|---|---|
| Kelvin | Absolute temperature in kelvin; zero kelvin is absolute zero. |
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Worked Example
293.15 K − 273.15 = 20°C.
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Why Use This Calculator?
Use the result to put measurements on a common basis before comparing them or estimating quantities. The original measurement precision still limits the precision of the answer.
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Common Mistakes
- A temperature reading and a temperature change use different rules. Apply the offset to readings only; kelvin values cannot be below absolute zero.
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Frequently Asked Questions
Why can’t I just multiply by a conversion factor?
The scales have different zero points. Converting an actual temperature therefore needs an offset as well as, in some cases, a scale factor.
When should I round a measurement?
Carry the measured values and conversion factors through the calculation first. Round the final result to a precision justified by the original measurements.
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Sources & References
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