Temperature Converter
Convert temperature units including kelvin, Celsius, Fahrenheit, Rankine, Reaumur and many more temperature units instantly and accurately.
Popular Temperature Conversions
Quick access to the most commonly used temperature conversions.
About Temperature Units
Free online temperature converter - converts between 6 units of temperature, including kelvin [K], Celsius [C], Fahrenheit [F], Rankine [R], etc. Also, explore many other unit converters or learn more about temperature unit conversions. Different unit systems are used worldwide, including the Metric System (SI) and the Imperial / US Customary System.
Metric System (SI)
The metric system is the most widely adopted international measurement standard. The base unit is the kelvin.
Imperial System (US)
The imperial system is commonly used in the United States and specialized international industries including aviation and maritime navigation.
Common Temperature Units
Here are some of the most common temperature units and their abbreviations.
| Unit | Symbol | Type | In Kelvin |
|---|---|---|---|
| Kelvin | K | Metric (base) | 1 K |
| Celsius | °C | Metric | 274.15 K |
| Fahrenheit | °F | Imperial | 255.927778 K |
| Rankine | °R | Standard | 0.555556 K |
| Reaumur | °r | Standard | 274.4 K |
| Triple point of water | — | Standard | 273.16 K |
Common Conversion Formulas
Here are some useful temperature conversion formulas.
Frequently Asked Questions
Find answers to common questions about temperature conversion.
Related Converters
Explore other measurement converters you might find useful.
Length Converter
Convert standard units and scientific measurements.
Convert Now>Weight & Mass Converter
Convert standard units and scientific measurements.
Convert Now>Area Converter
Convert standard units and scientific measurements.
Convert Now>Volume Converter
Convert standard units and scientific measurements.
Convert Now>