Conversion Result
What is Temperature Unit Conversion?
Temperature unit conversion is the process of accurately converting values between different temperature scales (Celsius, Fahrenheit, Kelvin, etc).
Each unit has different reference points and scale intervals, so conversion requires mathematical calculations based on the definition of each unit.
This allows you to express the same temperature value in the desired unit across various scientific, engineering, and everyday contexts.
How to Use Temperature Unit Converter
This converter uses Celsius (°C) as the base for all conversions to ensure high accuracy.
Enter the value you want to convert.
Select the original unit and the target unit.
Click the ‘Convert’ button, and the input value will be converted to the selected target unit.
The result is displayed with up to 10 decimal places to guarantee precision.
Frequently asked questions (FAQs)
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Why is Celsius (°C) used as the base for conversion?
Celsius is the most widely used temperature unit internationally, and its conversion calculations are simple and accurate.
By converting all units to Celsius first and then to the target unit, we minimize errors. -
Why are results displayed with up to 10 decimal places?
To ensure precise calculations, results are shown with up to 10 decimal places.
This level of detail is important for scientific and engineering applications.
For everyday use, 2–3 decimal places are usually sufficient. -
Which temperature units are supported?
We support standard units (Celsius, Fahrenheit, Kelvin), engineering units (Rankine), and historical/rare units (Réaumur, Newton, Delisle, Rømer).
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Can negative values be converted?
Yes. Negative temperatures are valid for most units such as Celsius and Fahrenheit.
However, Kelvin is an absolute scale, so values below 0K do not exist. -
Is there any chance of conversion errors?
This converter uses internationally accepted formulas, so errors are virtually nonexistent.
However, reducing the number of decimal places may cause minor rounding differences. -
Can I round or limit the number of decimal places in the result?
By default, results are displayed with up to 10 decimal places, but options to reduce decimal places can be provided.
(e.g., rounding to 2 decimal places) -
Is it available on mobile devices?
Yes, the converter is designed with a responsive layout for convenient use on both PC and mobile devices.
Conversion units and descriptions
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Celsius (°C)
Temperature scale based on water freezing at 0°C and boiling at 100°C (at 1 atm).
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Fahrenheit (°F)
Temperature scale based on water freezing at 32°F and boiling at 212°F (at 1 atm).
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Kelvin (Absolute Temperature) (K)
SI unit of temperature based on absolute zero (0K). The scale interval is the same as Celsius, and 0°C = 273.15K.
Standard Units
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Rankine (°R)
An absolute temperature scale based on Fahrenheit. 0°R represents absolute zero, commonly used in engineering and thermodynamics.
Engineering Units
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Réaumur (°Ré)
Historical temperature scale where water freezes at 0°Ré and boils at 80°Ré. Used in parts of Europe in the past.
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Newton (°N)
A historical temperature scale proposed by Isaac Newton, with a linear scale based on water freezing and boiling points.
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Delisle (°D)
Historical temperature scale where water boiling point is 0°D, and values increase as temperature decreases (reverse scale).
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Rømer (°Rø)
A historical temperature scale created by Ole Rømer, defined by fixed points including the freezing point of brine.
Historical & Rare Units