Temperature Converter
Temperature measures how hot or cold something is. Because Celsius, Fahrenheit, and Kelvin have different zero points, conversions are not simple multiplications — they add or subtract an offset. Kelvin is the SI base unit and starts at absolute zero. These conversions treat values as absolute temperatures, not temperature differences.
About temperature conversion
Temperature conversion is commonly needed when cooking, weather, medical readings, and science experiments. Because the scales have different zero points, you add or subtract an offset — you cannot simply multiply.
Popular conversions
All temperature units
| Unit | Symbol | System |
|---|---|---|
| Celsius | °C | Metric |
| Fahrenheit | °F | US |
| Kelvin | K | SI |
| Rankine | °R | Other |
Frequently asked questions
What is the base unit for temperature?
Temperature conversions on this site are calculated against the kelvin (K).
Which temperature units can I convert?
You can convert between 4 units, including celsius, fahrenheit, kelvin, rankine, and more.
Where is temperature conversion useful?
It is commonly needed when cooking, weather, medical readings, and science experiments.
Does this converter mix measurement systems?
The converter supports Metric, US, SI, Other units and keeps their exact definitions separate so results stay accurate.