UnitConTemperature
Temperature conversion is different from most unit conversions because it is not a simple multiply-and-divide relationship. Each scale uses a different zero point and interval size. Celsius is widely used worldwide, Fahrenheit remains common for everyday use in the United States, and Kelvin is the scientific absolute scale that begins at absolute zero. This converter handles those differences automatically and clearly.
Common conversions
| From | To |
|---|---|
| 0 Celsius | 32 Fahrenheit |
| 100 Celsius | 212 Fahrenheit |
| 37 Celsius | 98.6 Fahrenheit |
| 72 Fahrenheit | 22.22222 Celsius |
| -40 Celsius | -40 Fahrenheit |
| 0 Kelvin | -273.15 Celsius |
| 212 Fahrenheit | 100 Celsius |
| 273 Kelvin | 31.73 Fahrenheit |
Frequently asked questions
Multiply Celsius by 9/5, then add 32. That is why 0°C becomes 32°F and 100°C becomes 212°F.
-40 degrees is the same on both scales. It is a well-known crossover point often used as a temperature conversion check.
Absolute zero is 0 K, which equals -273.15°C and -459.67°F. It is the theoretical lowest possible temperature.
Normal body temperature is commonly given as about 37°C or 98.6°F. Actual body temperature varies slightly by person and time of day.
Kelvin is the SI base unit for thermodynamic temperature. It is used in science, engineering, and any context where absolute temperature matters.