Convert Celsius, Fahrenheit, Kelvin and Rankine instantly — for product specifications, manufacturing and international trade documentation.
Enter a value, pick the source and target units, and the result updates in real time. Click Swap to reverse the conversion.
| Reference | °C | °F | K |
|---|---|---|---|
| Absolute Zero | -273.15 | -459.67 | 0 |
| Freezing Point | 0 | 32 | 273.15 |
| Room Temperature | 25 | 77 | 298.15 |
| Body Temperature | 37 | 98.6 | 310.15 |
| Boiling Point | 100 | 212 | 373.15 |
A temperature converter is a tool that translates a temperature reading from one scale — such as Celsius, Fahrenheit, Kelvin or Rankine — into another. MerchAsst's Temperature Converter supports the four most common scales used in product specs, manufacturing, storage and international trade documentation.
Enter the value in Celsius, select "Celsius (°C)" as the source unit and "Fahrenheit (°F)" as the target. The result updates instantly. The formula is °F = (°C × 9/5) + 32.
Enter the value in Fahrenheit, select "Fahrenheit (°F)" as the source and "Celsius (°C)" as the target. One Fahrenheit degree equals 5/9 of a Celsius degree. The formula is °C = (°F − 32) × 5/9.
Kelvin (K) is the SI base unit of temperature, starting at absolute zero (0 K = −273.15 °C). It is used in scientific, engineering and laboratory contexts, and in product or material specs that require absolute temperature values. Conversions between Kelvin and Celsius use the formula K = °C + 273.15.
Kelvin is an absolute temperature scale that begins at absolute zero — the point where all thermal motion stops. Because 0 K is the lowest physically possible temperature, Kelvin values are never negative. The converter will return an error if you attempt to convert a Celsius or Fahrenheit value below absolute zero into Kelvin.
