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Temperature Converter

Convert temperatures instantly between Celsius, Fahrenheit and Kelvin with accurate formulas and detailed calculation steps. Get clear results in seconds with our free online temperature converter.

Whether you need to convert Celsius to Fahrenheit, Fahrenheit to Celsius, Celsius to Kelvin, or another supported temperature scale, this tool provides a fast and easy conversion.

Celsius Fahrenheit Kelvin Accurate Formulas Instant Results

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Temperature Scales

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Convert Temperature

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Convert Celsius, Fahrenheit and Kelvin instantly.

value

Decimal and negative temperatures are supported.

Quick Examples:

What Is a Temperature Converter?

A temperature converter is an online tool that changes a temperature value from one temperature scale to another. The most commonly used temperature scales are Celsius, Fahrenheit and Kelvin.

Our temperature converter online lets you quickly convert between these scales without performing the calculations manually. Simply enter a temperature, select the original unit and choose the unit you want to convert to.

The calculator provides the converted value along with the formula and calculation steps, making it useful for everyday conversions, education, cooking, weather information and general reference.

What Can This Temperature Converter Calculate?

Convert temperatures between the three major temperature scales quickly and accurately.

Celsius to Fahrenheit

Convert Celsius temperatures into Fahrenheit using the standard mathematical conversion formula.

Fahrenheit to Celsius

Quickly convert Fahrenheit values into Celsius for weather, cooking and everyday temperature comparisons.

Celsius to Kelvin

Convert Celsius values to Kelvin for scientific and technical temperature calculations.

Kelvin to Celsius

Convert Kelvin measurements into Celsius with the correct absolute-temperature relationship.

Fahrenheit to Kelvin

Convert Fahrenheit values into Kelvin using standard temperature conversion equations.

Kelvin to Fahrenheit

Convert Kelvin temperatures to Fahrenheit with accurate results and clear calculation steps.

How to Use the Temperature Converter

Converting temperatures takes only a few simple steps.

1

Enter Temperature

Enter the temperature value you want to convert. Decimal and negative values are supported.

2

Select Units

Choose the original temperature scale and the scale you want to convert the value into.

3

View Your Result

Click Convert Temperature to see the converted value, formula and calculation steps.

Understanding Temperature Scales

°C

Celsius

Celsius is widely used for everyday temperature measurements and weather reporting in many countries.

Water freezes: 0°C
°F

Fahrenheit

Fahrenheit is commonly used for everyday temperature measurements and weather reporting in the United States.

Water freezes: 32°F
K

Kelvin

Kelvin is an absolute temperature scale commonly used in science, engineering and technical applications.

Absolute zero: 0 K

Common Temperature Conversions

These reference values can help you quickly compare common Celsius, Fahrenheit and Kelvin temperatures.

Celsius Fahrenheit Kelvin Reference
0°C 32°F 273.15 K Water freezing point
20°C 68°F 293.15 K Approximate mild room temperature
37°C 98.6°F 310.15 K Approximate human body temperature
100°C 212°F 373.15 K Water boiling point at standard pressure

Temperature Conversion Formulas

Temperature scales use different reference points, so each conversion requires a specific mathematical formula.

Celsius to Fahrenheit

°F = (°C × 9/5) + 32

Fahrenheit to Celsius

°C = (°F − 32) × 5/9

Celsius to Kelvin

K = °C + 273.15

Kelvin to Celsius

°C = K − 273.15

Fahrenheit to Kelvin

K = (°F − 32) × 5/9 + 273.15

Kelvin to Fahrenheit

°F = (K − 273.15) × 9/5 + 32

Common Uses for a Temperature Converter

A temperature converter is useful whenever information is provided using a temperature scale that is different from the one you normally use. For example, you may need to convert a weather temperature from Fahrenheit to Celsius.

Temperature conversion is also common in cooking and baking, where recipes may use different temperature systems depending on their country of origin.

Students, teachers, scientists and engineers can use the calculator to quickly check conversions between Celsius, Fahrenheit and Kelvin without manually applying formulas.

Important Information About Temperature Conversion

Celsius, Fahrenheit and Kelvin use different numerical reference points. Celsius and Fahrenheit have different freezing and boiling reference values, while Kelvin is an absolute temperature scale that begins at absolute zero.

Standard mathematical conversion formulas are used by this calculator. For scientific, laboratory, industrial or regulated applications, verify the required standards, environmental conditions and precision requirements.

Frequently Asked Questions About Temperature Conversion

What is a temperature converter?

A temperature converter changes a temperature value from one scale to another, such as Celsius to Fahrenheit, Fahrenheit to Celsius or Celsius to Kelvin.

What temperature units are supported?

This temperature converter supports Celsius (°C), Fahrenheit (°F) and Kelvin (K).

What is 100°C in Fahrenheit?

100°C equals 212°F.

What is 0°C in Kelvin?

0°C equals 273.15 K.

What is 0°C in Fahrenheit?

0°C equals 32°F.

Can I convert negative temperatures?

Yes. Negative Celsius and Fahrenheit temperatures can be converted. Kelvin temperatures cannot be lower than absolute zero.

What is absolute zero?

Absolute zero is 0 K, which corresponds to -273.15°C and approximately -459.67°F.

Is this temperature converter free?

Yes. The temperature converter is free to use online and does not require software installation.

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Temperature Conversion Note

This calculator uses standard mathematical temperature conversion formulas. Results are intended for general informational and educational use. For laboratory, industrial, scientific or regulated applications, verify the applicable standards and required precision.

Convert Your Temperature Now

Convert Celsius, Fahrenheit and Kelvin instantly with accurate results, formulas and calculation steps.

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